Doctor Who: The End of Time (Part Two)
Though it was announced over a year ago, tonight is in fact David Tennant's final appearance as The Doctor. The second part of 'The End of Time' storyline, Tennant will be regenerating at the end of the episode, passing the keys of the TARDIS to Matt Smith. Smith is going to have awfully big shoes to fill, but that is a worry for another time. Tonight's worry is whether or not The Doctor is going to be able to save the universe before being done in. Has The Master finally gotten the best of The Doctor? It's all too exciting, we can barely wait to see what happens (seriously).