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Exhibit 99.1

Attributed Financial Information for Tracking Stock Groups

        Our Splitco Starz common stock is intended to reflect the separate performance of our Starz Group which primarily includes our wholly-owned subsidiary Starz, LLC. Our Splitco Capital common stock is intended to reflect the separate performance of our Capital Group which is comprised of all of our assets and businesses not attributed to the Starz Group.

        The following tables present our assets and liabilities as of March 31, 2011 and our revenue, expenses and cash flows as of and for the three months ended March 31, 2011 and 2010. The tables further present our assets, liabilities, revenue, expenses and cash flows that are attributed to the Starz Group and the Capital Group, respectively. The financial information should be read in conjunction with our unaudited condensed combined financial statements for the three months ended March 31, 2011 included in this Quarterly Report on Form 10-Q.

        Notwithstanding the following attribution of assets, liabilities, revenue, expenses and cash flows to the Starz Group and the Capital Group, our tracking stock structure does not affect the ownership or the respective legal title to our assets or responsibility for our liabilities. We and our subsidiaries are each responsible for our respective liabilities. Holders of Splitco Starz common stock and Splitco Capital common stock are holders of our common stock and are subject to risks associated with an investment in our company and all of our businesses, assets and liabilities. The issuance of Splitco Starz common stock and Splitco Capital common stock does not affect the rights of our creditors or creditors of our subsidiaries.

1


SUMMARY ATTRIBUTED FINANCIAL DATA

Splitco Starz Group

 
  March 31,
2011
  December 31,
2010
 
 
  amounts in millions
 

Summary balance sheet data:

             

Current assets

  $ 1,906     1,746  

Total assets

  $ 2,743     2,539  

Long-term debt, including current portion

  $ 81     68  

Attributed net assets

  $ 2,302     2,246  

 

 
  Three months ended
March 31,
 
 
  2011   2010  
 
  amounts in millions
 

Summary operations data:

             

Revenue

  $ 392     307  

Operating expenses

    (195 )   (165 )

Selling, general and administrative expenses(1)

    (76 )   (45 )

Depreciation and amortization

    (5 )   (5 )
           
 

Operating income

    116     92  

Other income (expense), net

   
(2

)
 
1
 

Income tax expense

    (61 )   (36 )
           
 

Net earnings

    53     57  

Less net earnings attributable to noncontrolling interests

    1      
           
 

Net earnings

  $ 52     57  
           

(1)
Includes stock-based compensation of $5 million and $6 million for the three months ended March 31, 2011 and 2010, respectively.

2


SUMMARY ATTRIBUTED FINANCIAL DATA

Splitco Capital Group

 
  March 31,
2011
  December 31,
2010
 
 
  amounts in millions
 

Summary balance sheet data:

             

Current assets

  $ 2,036     1,721  

Investments in available-for-sale securities and other cost investments

  $ 3,224     4,483  

Total assets

  $ 6,508     8,189  

Long-term debt, including current portion

  $ 750     2,033  

Attributed net assets

  $ 2,906     2,780  

 

 
  Three months ended
March 31,
 
 
  2011   2010  
 
  amounts in millions
 

Summary operations data:

             

Revenue

  $ 581     166  

Operating expenses

    (198 )   (105 )

Selling, general and administrative expenses(1)

    (31 )   (115 )

Legal settlement

    7      

Depreciation and amortization

    (16 )   (16 )
           
 

Operating income (loss)

    343     (70 )

Interest expense

   
(6

)
 
(23

)

Share of losses of affiliates, net (note 3)

    (5 )   (14 )

Realized and unrealized gains on financial instruments, net

    121     143  

Other income, net

    25     21  

Income tax expense

    (185 )   (35 )
           
 

Net earnings

  $ 293     22  
           

(1)
Includes stock-based compensation of $6 million and $11 million for the three months ended March 31, 2011 and 2010, respectively.

3



BALANCE SHEET INFORMATION
March 31, 2011
(unaudited)

 
  Attributed (note 1)    
 
 
  Splitco
Starz
Group
  Splitco
Capital
Group
  Inter-group
eliminations
  Combined
Splitco
 
 
  amounts in millions
 

Assets

                         

Current assets:

                         
 

Cash and cash equivalents

  $ 1,044     1,154         2,198  
 

Trade and other receivables, net

    229     25         254  
 

Program rights

    425             425  
 

Short term marketable securities

    149     165         314  
 

Restricted cash

    21     614         635  
 

Receivable from Liberty

        43         43  
 

Other current assets

    38     35     (23 )   50  
                   
   

Total current assets

    1,906     2,036     (23 )   3,919  
                   

Investments in available-for-sale securities and other cost investments (note 2)

    98     3,224         3,322  

Investments in affiliates, accounted for using the equity method (note 3)

        89         89  

Property and equipment, net

    102     134         236  

Intangible assets not subject to amortization

    132     354         486  

Intangible assets subject to amortization, net

    18     136         154  

Program rights

    351             351  

Deferred costs

        242         242  

Deferred tax assets

        263     (29 )   234  

Other assets, at cost, net of accumulated amortization

    136     30         166  
                   
   

Total assets

  $ 2,743     6,508     (52 )   9,199  
                   

Liabilities and Equity

                         

Current liabilities:

                         
 

Accounts payable

  $ 7     10         17  
 

Accrued liabilities

    216     37         253  
 

Intergroup payable (receivable)

    22     (22 )        
 

Financial instruments

    2     1,131         1,133  
 

Current portion of debt (note 4)

    23     750         773  
 

Current deferred tax liabilities

        743     (23 )   720  
 

Deferred revenue

    30     98         128  
 

Other current liabilities

    13     76         89  
                   
   

Total current liabilities

    313     2,823     (23 )   3,113  
                   

Long-term debt (note 4)

    58             58  

Deferred income tax liabilities

    29         (29 )    

Deferred revenue

        530         530  

Other liabilities

    45     250         295  
                   
   

Total liabilities

    445     3,603     (52 )   3,996  

Equity/Attributed net assets

    2,302     2,906         5,208  

Noncontrolling interests in equity of subsidiaries

    (4 )   (1 )       (5 )
                   
   

Total liabilities and equity

  $ 2,743     6,508     (52 )   9,119  
                   

4


STATEMENT OF OPERATIONS AND COMPREHENSIVE EARNINGS (LOSS) INFORMATION
Three months ended March 31, 2011
(unaudited)

 
  Attributed (note 1)    
 
 
  Splitco
Starz
Group
  Splitco
Capital
Group
  Combined
Splitco
 
 
  amounts in millions
 

Revenue:

                   
 

Communications and programming services

  $ 392     581     973  
               

    392     581     973  
               

Operating costs and expenses:

                   
 

Operating

    195     198     393  
 

Selling, general and administrative, including stock-based compensation (note 5)

    76     31     107  
 

Legal settlement

        (7 )   (7 )
 

Depreciation and amortization

    5     16     21  
               

    276     238     514  
               
   

Operating income

    116     343     459  

Other income (expense):

                   
 

Interest expense

    (1 )   (6 )   (7 )
 

Share of earnings (losses) of affiliates, net (note 3)

        (5 )   (5 )
 

Realized and unrealized gains (losses) on financial instruments, net

    1     121     122  
 

Gains (losses) on dispositions, net

    (2 )       (2 )
 

Other, net

        25     25  
               

    (2 )   135     133  
               
   

Earnings before income taxes

    114     478     592  

Income tax expense

   
(61

)
 
(185

)
 
(246

)
               
   

Net earnings

    53     293     346  

Less net earnings attributable to noncontrolling interests

    1         1  
               

Net earnings attributable to Splitco stockholders

  $ 52     293     345  
               

Net earnings

  $ 53     293     346  
               

Other comprehensive earnings (loss), net of taxes:

                   
 

Unrealized holding losses arising during the period

        (24 )   (24 )
 

Recognition of previously unrealized gains on available-for-sale securities, net

    (6 )       (6 )
 

Other

    1         1  
               
   

Other comprehensive earnings (loss)

    (5 )   (24 )   (29 )
               
     

Comprehensive earnings

    48     269     317  

Less comprehensive earnings attributable to the noncontrolling interests

    1         1  
               

Comprehensive earnings attributable to Splitco stockholders

  $ 47     269     316  
               

5


STATEMENT OF OPERATIONS AND COMPREHENSIVE EARNINGS (LOSS) INFORMATION
Three months ended March 31, 2010
(unaudited)

 
  Attributed (note 1)    
 
 
  Splitco
Starz
Group
  Splitco
Capital
Group
  Combined
Splitco
 
 
  amounts in millions
 

Revenue:

                   
 

Communications and programming services

  $ 307     166     473  
               

    307     166     473  
               

Operating costs and expenses:

                   
 

Operating

    165     105     270  
 

Selling, general and administrative, including stock-based compensation (note 5)

    45     115     160  
 

Depreciation and amortization

    5     16     21  
               

    215     236     451  
               
   

Operating income (loss)

    92     (70 )   22  

Other income (expense):

                   
 

Interest expense

        (23 )   (23 )
 

Intergroup interest income (expense)

    2     2     4  
 

Share of earnings (losses) of affiliates, net (note 3)

        (14 )   (14 )
 

Realized and unrealized gains (losses) on financial instruments, net

    (1 )   143     142  
 

Gains (losses) on dispositions, net

        (1 )   (1 )
 

Other, net

        20     20  
               

    1     127     128  
               
   

Earnings before income taxes

    93     57     150  

Income tax expense

    (36 )   (35 )   (71 )
               
   

Net earnings

    57     22     79  

Less net earnings attributable to the noncontrolling interests

             
               

Net earnings attributable to Splitco stockholders

  $ 57     22     79  
               

Net earnings

  $ 57     22     79  
               

Other comprehensive earnings (loss), net of taxes:

                   
 

Unrealized holding gains arising during the period

        30     30  
 

Reattribution of other comprehensive earnings between tracking stocks

        30     30  
               
   

Other comprehensive earnings (loss)

        60     60  
               
     

Comprehensive earnings

    57     82     139  

Less comprehensive earnings attributable to the noncontrolling interests

             
               

Comprehensive earnings attributable to Splitco stockholders

  $ 57     82     139  
               

6



STATEMENT OF CASH FLOWS INFORMATION
Three months ended March 31, 2011
(unaudited)

 
  Attributed (note 1)    
 
 
  Splitco
Starz
Group
  Splitco
Capital
Group
  Combined
Splitco
 
 
  amounts in millions
 

Cash flows from operating activities:

                   
 

Net earnings

  $ 53     293     346  
 

Adjustments to reconcile net earnings to net cash provided by operating activities:

                   
   

Depreciation and amortization

    5     16     21  
   

Amortization of program rights

    141         141  
   

Stock-based compensation

    5     6     11  
   

Cash payments for stock based compensation

    (2 )   (1 )   (3 )
   

Share of losses of affiliates, net

        5     5  
   

Realized and unrealized losses on financial instruments, net

    (1 )   (121 )   (122 )
   

Losses on disposition of assets, net

    2         2  
   

Intergroup tax allocation

    41     (74 )   (33 )
   

Intergroup tax payments

    59     10     69  
   

Deferred income tax expense

    18     168     186  
   

Other noncash charges (credits), net

    16     (391 )   (375 )
   

Changes in operating assets and liabilities

                   
     

Current and other assets

    (211 )   (9 )   (220 )
     

Payables and other current liabilities

    57     180     237  
               

Net cash provided by operating activities

    183     82     265  
               

Cash flows from investing activities:

                   
 

Investments in and loans to cost and equity investees

        (19 )   (19 )
 

Repayment of loans by investees

        134     134  
 

Capital expended for property and equipment

    (1 )   (2 )   (3 )
 

Net sales (purchases) of short term investments

    (4 )   169     165  
 

Net decrease (increase) in restricted cash

    7     (86 )   (79 )
 

Reattribution of cash

        (264 )   (264 )
 

Other investing activities, net

    (1 )   4     3  
               

Net cash provided (used) by investing activities

    1     (64 )   (63 )
               

Cash flows from financing activities:

                   
 

Borrowings of debt

    1         1  
 

Repayments of debt

    (19 )       (19 )
 

Repurchases of Liberty common stock

        (80 )   (80 )
 

Other financing activities, net

        4     4  
               

Net cash used by financing activities

    (18 )   (76 )   (94 )
               
 

Net increase (decrease) in cash and cash equivalents

    166     (58 )   108  
 

Cash and cash equivalents at beginning of period

    878     1,212     2,090  
               
 

Cash and cash equivalents at end period

  $ 1,044     1,154     2,198  
               

7



STATEMENT OF CASH FLOWS INFORMATION
Three months ended March 31, 2010
(unaudited)

 
  Attributed
(note 1)
   
 
 
  Splitco
Starz
Group
  Splitco
Capital
Group
  Combined
Splitco
 
 
  amounts in millions
 

Cash flows from operating activities:

                   
 

Net earnings

  $ 57     22     79  
 

Adjustments to reconcile net earnings to net cash provided by operating activities:

                   
   

Depreciation and amortization

    5     16     21  
   

Amortization of program rights

    142         142  
   

Stock-based compensation

    6     11     17  
   

Cash payments for stock based compensation

    (28 )   (1 )   (29 )
   

Share of losses of affiliates, net

        14     14  
   

Realized and unrealized gains (losses) on financial instruments, net

    1     (143 )   (142 )
   

Losses on disposition of assets, net

        1     1  
   

Intergroup tax allocation

    24     (105 )   (81 )
   

Intergroup tax payments

    43     29     72  
   

Deferred income tax expense

    11     38     49  
   

Other noncash charges, net

    4     16     20  
   

Changes in operating assets and liabilities

                   
     

Current and other assets

    (200 )   (47 )   (247 )
     

Payables and other current liabilities

    26     232     258  
               

Net cash provided by operating activities

    91     83     174  
               

Cash flows from investing activities:

                   
 

Cash proceeds from dispositions

    29     29     58  
 

Proceeds from settlement of financial instruments

        414     414  
 

Investments in and loans to cost and equity investees

        (176 )   (176 )
 

Repayment of loans by investees

        25     25  
 

Repayment of loan by Liberty

    158     158     316  
 

Capital expended for property and equipment

        (2 )   (2 )
 

Net sales of short term investments

        35     35  
 

Net increase in restricted cash

    (20 )   (23 )   (43 )
 

Reattribution of cash

        (807 )   (807 )
               

Net cash provided (used) by investing activities

    167     (347 )   (180 )
               

Cash flows from financing activities:

                   
 

Borrowings of debt

        38     38  
 

Repayments of debt

    (1 )   (524 )   (525 )
 

Repurchases of Liberty common stock

    (40 )   (4 )   (44 )
 

Other financing activities, net

    (6 )   77     71  
               

Net cash used by financing activities

    (47 )   (413 )   (460 )
               
 

Net increase (decrease) in cash and cash equivalents

    211     (677 )   (466 )
 

Cash and cash equivalents at beginning of period

    794     3,157     3,951  
               
 

Cash and cash equivalents at end period

  $ 1,005     2,480     3,485  
               

8



Notes to Attributed Financial Information

(unaudited)

(1)
The Starz Group consists primarily of our subsidiary Starz, LLC and approximately $1,044 million of cash, including subsidiary cash. Accordingly, the accompanying attributed financial information for the Starz Group includes these investments and the assets, liabilities, revenue, expenses and cash flows of that consolidated subsidiaries.

9



Notes to Attributed Financial Information (Continued)

(unaudited)

10



Notes to Attributed Financial Information (Continued)

(unaudited)

11



Notes to Attributed Financial Information (Continued)

(unaudited)

(2)
Investments in available-for-sale securities, including non-strategic securities, and other cost investments are summarized as follows:

 
  March 31,
2011
  December 31,
2010
 
 
  amounts in millions
 

Splitco Capital Group

             
 

Time Warner Inc.(b)

  $ 444     1,101  
 

Time Warner Cable Inc.(b)

    223     567  
 

Sprint Nextel Corporation(a)

    214     301  
 

Motorola Solutions(c)

    331     471  
 

Motorola Mobility(c)

    158      
 

Viacom, Inc. 

    353     301  
 

Live Nation Entertainment, Inc.(d)

    362     389  
 

Century Link, Inc.(a)

    153     248  
 

Priceline(a)

    264     208  
 

Other available-for-sale equity securities(a)

    44     100  
 

SIRIUS XM debt securities

    393     384  
 

Other available-for-sale debt securities

    274     404  
 

Other cost investments and related receivables

    11     9  
           
   

Total attributed Splitco Capital Group

    3,224     4,483  
           

Splitco Starz Group

             
 

Other

    98     67  
           
   

Total attributed Splitco Starz Group

    98     67  
           
     

Combined Splitco

  $ 3,322     4,550  
           

(a)
Includes shares pledged as collateral for share borrowing arrangements.

(b)
As discussed in note 1, certain of these securities were reattributed from the Capital Group to the Interactive Group in the first quarter of 2011.

(c)
Effective January 4, 2011 Motorola, Inc. separated Motorola Mobility Holdings, Inc. in a 1 for 8 stock distribution. Motorola Inc. simultaneously completed a 1 for 7 reverse stock split and was renamed Motorola Solutions, Inc.

(d)
During the first quarter of 2011, Liberty entered into a subscription agreement to acquire shares of Live Nation. Approximately 1.8 million shares were acquired immediately under the agreement for consideration of approximately $19 million. Additionally, under the agreement Liberty has agreed to acquire an additional 5.5 million shares for consideration of $58 million, subject to Live Nation shareholder vote to be held at the annual meeting which must occur no later than June 30, 2011. Splitco will assume the obligations of Liberty under the subscription agreement.

12



Notes to Attributed Financial Information (Continued)

(unaudited)

(3)
The following table presents information regarding certain equity method investments:

 
  March 31, 2011   Share of earnings (losses) three months ended March 31,  
 
  Percentage
ownership
  Carrying value   Market value  
 
  2011   2010  
 
  dollar amounts in millions
 

Splitco Capital Group

                               
 

Sirius(a)

    40 % $   $ 4,269   $ (7 ) $ (8 )

(a)
As of March 31, 2011, the Sirius Preferred Stock had a market value of $4,269 million based on the value of the common stock into which it is convertible.
(4)
Debt attributed to the Starz Group and the Capital Group is comprised of the following:

 
  March 31, 2011  
 
  Outstanding
principal
  Carrying
value
 
 
  amounts in millions
 

Splitco Capital Group

             
 

Bank facility

  $ 750     750  
           
   

Total attributed Splitco Capital Group debt

    750     750  
           

Splitco Starz Group

             
 

Subsidiary debt

    81     81  
           
   

Total attributed Splitco Starz Group debt

    81     81  
           

Total debt

  $ 831     831  
           
(5)
Cash and stock-based compensation expense for our corporate employees has been allocated among the Splitco Starz Group and the Splitco Capital Group based on the estimated percentage of time spent providing services for each group. Historically, these items have been allocated to the Liberty Interactive Group based on the same methodology and based on the services agreement, which will be entered into between Liberty and Splitco in connection with the proposed Split-Off, will continue to be allocated on a similar basis upon the completion of the proposed Split-Off. Other general and administrative expenses are charged directly to the groups whenever possible and are otherwise allocated based on estimated usage or some other reasonably determined methodology. Amounts allocated from the Splitco Capital Group to the Liberty Interactive Group and the Splitco Starz Group, including stock-based compensation, are as follows:

 
  Three months ended
March 31,
 
 
  2011   2010  
 
  amounts in millions
 

Liberty Interactive Group

  $ 21     17  

Splitco Starz Group

  $ 7     4  

13



Notes to Attributed Financial Information (Continued)

(unaudited)

(6)
We have accounted for income taxes for the Splitco Starz Group and the Splitco Capital Group in the accompanying attributed financial information in a manner similar to a stand-alone company basis. To the extent this methodology differs from our tax sharing policy, differences have been reflected in the attributed net assets of the groups.

(7)
The Splitco Starz common stock and the Splitco Capital common stock will have voting and conversion rights under the proposed charter. Following is a summary of those rights. Holders of Series A common stock of each group are entitled to one vote per share and holders of Series B common stock of each group are entitled to ten votes per share. Holders of Series C common stock of each group, if issued, will be entitled to 1/100th of a vote per share in certain limited cases and will otherwise not be entitled to vote. In general, holders of Series A and Series B common stock vote as a single class. In certain limited circumstances, the board may elect to seek the approval of only the holders of common stock related to our Starz Group or our Capital Group.

14




QuickLinks

BALANCE SHEET INFORMATION March 31, 2011 (unaudited)
STATEMENT OF CASH FLOWS INFORMATION Three months ended March 31, 2011 (unaudited)
STATEMENT OF CASH FLOWS INFORMATION Three months ended March 31, 2010 (unaudited)
Notes to Attributed Financial Information (unaudited)