Back from the holidays, Liz Lemon (Tina Fey) has a new outlook on life while Tracy (Tracy Morgan) is jealous of Jenna's (Jane Krakowski) new fame as a celebrity judge.

Liz Lemon (Tina Fey) tries to keep her boyfriend's identity a secret from Jack Donaghy (Alec Baldwin) while scrambling to fix a publicity mess. Kelsey Grammer guest stars.

Jack Donaghy's (Alec Baldwin) nemesis, Devin Banks (guest star Will Arnett), returns with blackmail. Kelsey Grammer, James Marsden, and Denise Richards also guest star.

Jack (Alec Baldwin) tries to impress Hank Hooper (Ken Howard) with his cost-cutting techniques by eliminating the Page program and Liz (Tina Fey) searches for a new best friend.

Liz and Jack go head-to-head over her contract negotiations. Kenneth switches Page assignments. Suze Orman guest stars.

Valentine's Day fever hits TGS. Mary Steenburgen guest stars. Part 1 of 2.

Valentine's Day fever hits TGS. Mary Steenburgen guest stars. Part 2 of 2.

Jack is mugged and decides to run for mayor, while Jenna and Paul (guest star Will Forte) reach a new level in their relationship.

The "TGS" gang celebrates Leap Day.

Jack introduces Kenneth to the dark side of the business world while Liz is stuck in a fake relationship with Frank. Patti LuPone and Susan Sarandon guest star.

Kenneth's new job leaves him facing off with Liz, and Jack deals with the issues of having a teenage nemesis. Chloe Grace Moretz guest stars.

Liz Lemon (Tina fey) is cursed on St. Patrick 's Day when ex-boyfriend Dennis (guest star Dean Winters) shows up unexpectedly, interrupting her day with Criss (guest star James Marsden). Kristen Schaal also guest stars.

Jack (Alec Baldwin) revamps his efforts to rescue his wife, while Liz (Tina Fey) agrees to mentor Hazel (Kristen Schaal).

Liz Lemon (Tina Fey) writes the script for the Avery TV-Movie and stirs up trouble for Jack (Alec Baldwin) and Diana Jessup (Mary Steenburgen).

Jack (Alec Baldwin) struggles to come up with an inspired idea to expand the Kabletown empire. Liz (Tina Fey) attempts to break free from her repetitive lifestyle.

Jack (Alec Baldwin) is disappointed by Pete's (Scott Adsit) lack of ambition. Tracy (Tracy Morgan) regains his sense of smell. Jenna (Jane Krakowski) engages in a prank war with the writers.

Liz (Tina Fey) tries to get Jack (Alec Baldwin) to have an important conversation with his mother (guest star Elaine Stritch).

Jack (Alec Baldwin) gets creative when his new business idea for Kabletown goes awry. Jenna (Jane Krakowski) stages a public breakdown to win back Paul (guest star Will Forte). James Marsden also guest stars.

EAST COAST VERSION: Live Broadcast -- Kenneth (Jack McBrayer) takes drastic measures to prove why TGS should stay a live show.

Live Broadcast -- Kenneth (Jack McBrayer) takes drastic measures to prove why TGS should stay a live show.

"Queen of Jordan" takes over "TGS". Sherri Shepherd and Mary Steenburgen guest star.

Avery (guest star Elizabeth Banks) finally returns home from North Korea, but Jack (Alec Baldwin) questions her fidelity overseas.

Jack (Alec Baldwin) and Avery (Elizabeth Banks) plan to renew their vows. Criss (James Marsden) wants to prove to Liz (Tina Fey) that he's the one.