21. The Tenth and Eleventh Doctors Meet
From: "The Day of the Doctor"
Premiere: November 23, 2013
On the exact 50th anniversary of Doctor Who first airing, David Tennant's Tenth Doctor and Matt Smith's Eleventh finally meet, and immediately jockey to see who has the longer sonic screwdriver. But it's another embodiment – John Hurt's battle-hardened War Doctor – who steers his younger incarnations toward a vital resolution, in the process finding salvation in an encounter with a doomsday weapon that chooses Rose Tyler as its avatar. In a subtle yet grand final flourish, Tom Baker makes an extraordinary cameo appearance. Only an appearance by the absent Chris Eccleston could have improved this celebratory epic.