30 Rock - All Seasons

Jack Donaghy, the "Head of East Coast Television and Microwave Oven Programming" at GE, is transferred to work at the NBC headquarters, 30 Rockefeller Plaza, and retool the late night sketch comedy series The Girlie Show. The show's cast and crew are outraged by this, especially head writer Liz Lemon and main actress Jenna Maroney. Jack proceeds to wreak havoc on The Girlie Show, forcing Liz to hire off-the-wall movie star Tracy Jordan.

Liz and the crew of TGS returns from summer hiatus to many problems.

Jack tries to get his job - and his promotion - back. Meanwhile, Liz tries to adopt a baby, while Tracy enjoys the success of his pornographic videogame as Jenna sues him for not properly compensating her.

Jack requests that Liz cast a new actor for TGS, and Liz's subsequent search for the perfect comedian, much to the dismay of Jenna and Tracy, who fear losing their spotlight. The later half of the season focuses on two complementary story arcs: Jack's inability to choose between his two girlfriends, and Liz's inability to find a boyfriend to live up to her expectations and Jenna's relationship with a Jenna Maroney impersonator.

Season 5 focuses on Liz Lemon's continuing relationship with Carol Burnett, Jack's start into fatherhood with fiancée Avery, struggling with the merger of NBCUniversal with Kabletown, Tracy's foray into getting an EGOT, and Kenneth's attempt to get back to NBC.

Season six finds Liz emotionally maturing while in a new relationship; Jack continues to attempt to recover his wife from North Korea and find his identity at Kabletown. Kenneth moves up (and later down) the corporate ladder, and Jenna reaches a new level of fame thanks to being a judge on a reality show, and considers settling down with boyfriend Paul.

Season 7 continues to develop the relationship between Liz and Criss, as the pair try for children and consider getting married. Meanwhile, Jack attempts to improve his future prospects at the company, first by trying to "tank" NBC and convince Kabletown CEO Hank Hooper to sell it, and later by plotting to discredit his granddaughter and future CEO, Kaylee Hooper.