S4, E20: Liz Lemon (Tina Fey) meets her mother’s (Guest Star Anita Gillette) old flame, while Jack Donaghy’s (Alec Baldwin) mother, Colleen (Guest Star Elaine Stritch), gets tangled in his relationships with Avery Jessup (Guest Star Elizabeth Banks) and high school love, Nancy Donovan. Jenna’s (Jane Krakowski) mother, Verna (Guest Star Jan Hooks) returns, while Tracy learns a lesson from his "mom" (Guest Star Novella Nelson). Also starring: Jack McBrayer (Kenneth), Judah Friedlander (Frank), Scott Adsit (Pete), and John Lutz (Lutz).