S4, E18: Liz (Tina Fey) discovers that the TGS staff has been excluding her from their weekly hangouts, and strives to prove that she can be fun. Jack must choose between janitors and the shift time they both want, and Kenneth (Jack McBrayer) aids Tracy Jordan (Tracy Morgan) in being a good husband. Also starring: Jane Krakowski (Jenna), Scott Adsit (Pete), Judah Friedlander (Frank), Keith Powell (Toofer), John Lutz (Lutz), Katrina Bowden (Cerie), Maulik Pancholy (Jonathan).