30 Rock executive producer Robert Carlock talked to the Times about this Thursday’s live episode, and we learned a few things. Including: The episode takes place over the course of a TGS airing; it’s the day of Liz’s 40th birthday; it involves Tracy Jordan purposefully misbehaving; and it’ll be shot at SNL’s Studio 8H. Also, the cast and crew will be getting very, very drunk afterward. [ArtsBeat/NYT]