From Muppet Wiki

30 Rock is half-hour comedy program about the backstage workings of the fictional sketch comedy show, The Girlie Show. Inspired by Saturday Night Live, the show premiered on NBC in the fall of 2006 and stars Tina Fey as Liz Lemon. Fey also writes and co-produces the show. Other regular cast members include Jane Krakowski and Alec Baldwin.

Muppet Mentions

• Black Tie: Pete, the producer, tries to comfort his young son over the phone by talking in his Elmo voice.

• Cleveland: The Girlie Show star Tracy Jordan (played by SNL alum Tracy Morgan) fears that he is being targeted for elimination by "The Black Crusaders" because he is an embarrassment to African-Americans. Jordan lists Oprah Winfrey, Bill Cosby, and Gordon from Sesame Street as members of the elite, albeit fictional, organization.

• In a promo spot for the second season premiere, Tina has Alec guess who she's imitating. His first guess is the Muppets.

• Sandwich Day: In this episode from the second season, Liz Lemon gets mad that her special Sandwich Day sandwich is missing. Upon noticing this, she throws something out of her office and into the writers' room. The object (on pause, it can be seen as a lamp) smashes into a dry erase board that has ideas for characters and/or sketches written on it. A close-up of the board is shown very briefly, and one of the ideas is for "pervert Elmo."

Connections

• Alec Baldwin plays Jack Donaghy
• Wayne Brady appeared in the episode "The Source Awards"
• Tina Fey plays Liz Lemmon
• Whoopi Goldberg appeared in the episode "The Rural Juror"
• Jane Krakowski plays Jenna Maroney
• Nathan Lane appeared in the episode "The Fighting Irish"
• Conan O'Brien appeared as himself in "Tracy Does Conan"
• Paul Reubens appeared in the episode "Black Tie".
• Isabella Rossellini appeared in the episodes "Black Tie" and "Up All Night"
• Molly Shannon appeared in the episode "The Fighting Irish"
• Sean Hayes appeared in the episode "Hiatus"
• Al Roker appeared in the episode "Fireworks"
• Edie Falco played Celeste Cunningham in three episodes of Season 2.
• Gladys Knight appeared in the episode "Coffee and TV"
• Meredith Vieira appeared in the episode "Greenzo"
• Al Gore appeared as himself in the episode "Greenzo"
• Andy Richter appeared in the episode "LudaChristmas"
• Matthew Broderick played Cooter in the episode "Cooter"