The new Doctor Who will be announced tomorrow at 17:35 on BBC1.
The name of the actor who will replace David Tennant in Doctor Who will be announced on Saturday.
Tennant said in October that he would stand down from the show after filming four special episodes in 2009.
His replacement – the eleventh Doctor of the TV series – will be revealed in a Doctor Who Confidential programme on BBC One at 1735 on 3 January.
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