Holding(s) in Company

For filings with the FSA include the annex

For filings with issuer exclude the annex

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARESi

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached: ii

STV Group plc

2 Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights

yes

An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached

-

An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments

-

An event changing the breakdown of voting rights

-

Other (please specify):

-

3. Full name of person(s) subject to the notification obligation: iii

Gartmore Investment Limited

4. Full name of shareholder(s)  (if different from 3.):iv

HSBC Global Custody Nominee UK LTD

Nortrust Nominees Limited

Gartmore Growth Opportunities

BNY GIL CLT Account Nominees LTD

5. Date of the transaction and date on which the threshold is crossed or reached: v

8th June 2010

6. Date on which issuer notified:

10th June 2010

7. Threshold(s) that is/are crossed or reached: vi, vii

5%

8. Notified details:

A: Voting rights attached to shares viii, ix

Class/type of shares

if possible using the ISIN CODE

Situation previous to the triggering transaction

Resulting situation after the triggering transaction

Number of Shares

Number of Voting Rights

Number of shares

Number of voting rights

% of voting rights x

Direct

Direct xi

Indirect xii

Direct

Indirect

Ordinary Share

2,990,000

2,990,000

1,940,948

1,940,948

5.06%

GB00B3CX3644

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Expiration date xiii

Exercise/ Conversion Period xiv

Number of voting rights that may be acquired if the instrument is exercised/ converted.

% of voting rights

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments xv, xvi

Resulting situation after the triggering transaction

Type of financial instrument

Exercise price

Expiration date xvii

Exercise/ Conversion period xviii

Number of voting rights instrument refers to

% of voting rights xix, xx

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

1,940,948

5.06%

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable: xxi

Proxy Voting:

10. Name of the proxy holder:

11. Number of voting rights proxy holder will cease to hold:

12. Date on which proxy holder will cease to hold voting rights:

13. Additional information:

All figures are based on the Company's issued share capital of 38,336,436

14. Contact name:

Jane E A Tames

Company Secretary

STV Group plc

15. Contact telephone number:

0141 300 3074