30 Rock
NBC, 8:00 p.m. ET
Jack McBrayer, as Kenneth, gets counseled by Alec Baldwin’s Jack on how to defeat a work rival. But there are other plots thickening tonight, including one that makes room for return guest appearances by two talented ladies: Susan Sarandon, as a woman involved in a secret relationship with Frank (Judah Friedlander), and Patti LuPone as Frank’s meddling mother.