Wikipedia
"SeinfeldVision" is the first episode of the second season of 30 Rock and the twenty-second episode of the series. It was written by the series' creator, executive producer and lead actress, Tina Fey and directed by producer Don Scardino. The episode first aired on October 4, 2007 on the NBC network in the United States.
This episode takes place in the fall of 2007, as TGS with Tracy Jordan, a fictitious sketch comedy series, is about to air its season premiere. Liz Lemon (played by Fey) is seeking closure after breaking up with her boyfriend, Floyd ( Jason Sudeikis), while Jack Donaghy ( Alec Baldwin) is planning to launch a month of programming called SeinfeldVision. Jenna Maroney ( Jane Krakowski) has to deal with her obesity, which she developed over the summer. Kenneth Parcell ( Jack McBrayer) becomes Tracy Jordan's ( Tracy Morgan) "office wife" and Cerie ( Katrina Bowden) continues to prepare for her wedding to Aris. The episode received generally positive reviews from critics and fans.