Liz imitates Eliza Doolittle.
Tracy mentions that he liked it when the cast broke up laughing on the show
Jadwiga says it's her favorite show and quotes from it
Tina Fey (as herself) says "SNL crew, I love you" during her good night speech
Bill Hader says "I've always loved you" when he thinks the plane is about to crash. This is like the Nazi scene in blues brothers.
Liz says "My memory has Seinfeld money" in regard to Julia Louis-Dreyfus playing her in a flashback
alluded to by Drew in the East Coast version regarding his hand transplant
Tina Fey (as herself) tells the audience to "watch 'The Office' right now" at the very end of the episode
Carol asks Liz to TiVo the show for him
Jonathan took offense at a reference Liz made to the film in relation to him
Tracy plays Oprah in a "TGS" parody of the show