The first two lines of 30 Rock.

30 Rock + TV Tropes
↳ ’The Vertigo Effect’ with Liz Lemon:
The camera lens zooms in on the subject, while the camera itself is physically moved away from it, or vice versa. This effectively changes the focal length of the lens without altering the image composition. Often used to tell the viewers that the character in the focus of the camera has just had an emotional shock.

30 Rock + TV Tropes
↳ ’Throw It In’:
The preservation of ad libs, improvisations, and the occasional accident or mistimed what-have-you for dramatic or comic effect, sometimes at the cost of continuity. These are often some of the most memorable scenes, for better or for worse, due to their spontaneity. 
(The credits gag of “Black Light Attack!” has Lutz dancing energetically, with the rest of the cast chanting, “Go Lutz! Go Lutz! Go Lutz!” It was actually completely unscripted, as the actor John Lutz was just dancing to the generic techno music. It was such a fun moment, that the scene was left in.)

portiafey:

Every Single Movie Reference In ’30 Rock’