Liz Lemon is called upstairs to meet the new network exec, Jack Donaghy, who ...
30 Rock
Season 1 Episode 4: Jack the Writer
Jack starts sitting in on the writer sessions. They get annoyed by his weird, not-so-funny ideas and want him to stop, so Liz must tell him. She does, making him angry. Tracy sends Kenneth for nachos at Yankee Stadium and other "missions".