This has been a week for multiple Doctors. We just had the wonderful rollout of Matt Smith as The 11th Doctor on BBC America in The Eleventh Hour, and I had already commented on how BBC7 was running Tom Baker reading classic 4th Doctor stories. Starting yesterday, just before the Tom Baker reading BBC7 started running Wally K Daly’s Before the Screaming Begins, which has as one of the voice actors Patrick Troughton; the 2nd Doctor. If some of the older incarnations are unknown to you, io9 just put together a great article called Everything you need to know about Doctor Who. And while it is not very Doctor-like, I should also mention that Smith and Jones signed up to come back for one more Men in Black movie, this one in 3D.