This week’s edition of the Radio Times was released today and to celebrate Comic Relief's upcoming twenty first anniversary, there are twenty one alternate covers available for purchase. All twenty one of the covers feature a celebrity wearing a red nose and one of the covers is of David Tennant. You can view an image of the David Tennant cover above and view images of all of the other covers here on the official Radio Times website. Other Doctor Who related actors that feature on one of the front covers include; Simon Pegg, who played The Editor in The Long Game, and Ronnie Corbett who will be starring in a specially recorded Comic Relief episode of The Sarah Jane Adventures. The special episode of The Sarah Jane Adventures will air on the thirteenth of March as part of the official Comic Relief telethon which will see it's first hour presented by both David Tennant and Davina McCall. This issue of the Radio Times is now on sale at the price of £1.10 and it will be available for purchase until the tenth of March. You can find out how you can help raise money for Comic Relief here on the charity's official website. Will you be buying this week's issue of the Radio Times?