The BBC Press Office has stated that the Doctor Who Easter special, "Planet of the Dead", will air on BBC One on Saturday, April 11 from 6:45 to 7:45 pm. The Saturday date was posted last week on the Press Office's website, and subsequently withdrawn; it has now been reposted. The episode will also be broadcast on the BBC HD channel.
A trailer for the episode is now available on the BBC Website.
According to this month's issue of Doctor Who Magazine the title of the next in the series of specials will be revealed at the end of Planet of the Dead, along with a short trail. The second special, directed by Graeme Harper, features the Doctor plunged into a world of terror. It is expected to air in the autumn.
Update: the trailer broadcast on BBC1 Wednesday evening confirmed that the epsisode will be broadcast on Saturday 11th April.