As David Tennant’s time at the 10th Doctor comes to a close, we have only two more specials with him as the Doctor: “The Waters of Mars” and “End of Time”. Here are trailers for each:
“Water of Mars” Trailer
“End of Time” Trailer (from San Diego Comic-Con 2009)
“Waters of Mars” will be aired November 14, 2009 and “End of Time” is a two part closer for Tennant’s Doctor Who airing at the end of the season.