BBC America finally announced its broadcast schedule of the final episodes of David Tennant's incarnation of Doctor Who, starting in December with "The Waters of Mars."

There are three specials left to air before Matt Smith takes over as the 11th Doctor. Following is BBC's full press release. Power up the TARDIS!

October 30, 2009 -The BBC today announced the imminent arrival of the final Doctor Who episodes starring David Tennant as the Doctor. Television's longest running science fiction series, shot in HD, has just three episodes to go before a new Doctor arrives on screen next year.
The next special, Doctor Who: The Waters of Mars airs on BBC AMERICA, Saturday December 19, 9:00pm ET/PT. It stars Tennant and British stage and screen actress Lindsay Duncan (Rome, Langford) as Adelaide, his cleverest and most strong-minded companion.

All will be revealed as the Doctor and his companion Adelaide face terror on the Red Planet in one of the scariest adventures yet. Peter O'Brien (Casualty, Neighbours) guest stars as Ed, Adelaide's second-in-command at the base.

The Waters of Mars is written by Russell T Davies (Torchwood, Queer as Folk) and Phil Ford and directed by Graeme Harper. The executive producers are Russell T Davies and Julie Gardner (Torchwood, Life on Mars).

The remaining episodes, starring Tennant, will air over the holiday season as a two-part special. Airdates will be released in early December. Tennant shot a total of four specials before exiting the role - Planet of the Dead was the first one to air, last July, on BBC AMERICA.

The BBC will release The Waters of Mars and the two-part finale on DVD and Blu-ray, Tuesday, February 2, 2010. Doctor Who: Planet of the Dead is already available on DVD and Blu-ray. Releasing on February 2 are:


• Doctor Who: The Waters of Mars - DVD SRP: $14.98/BD SRP: $19.89
  
  
• Two-part special (2-disc release) - DVD SRP: $24.98 / BD SRP: $29.99
  
  
• Doctor Who: Specials Collection (5-disc release) - DVD SRP: $49.98 / BD SRP: $59.99 - contains The Next Doctor, Planet of the Dead, Waters of Mars and the two-part finale.

Source: SciFi Wire