David Letterman Show couch gag

The David Letterman Show couch gag is the eighth couch gag of Season 5.

Plot
The family sits, then realizes the couch is on the set of the Late Show with David Letterman; next to the couch, Dave spins in his chair to face forward at his desk.

Character Appearances

 * Homer Simpson
 * Marge Simpson
 * Bart Simpson
 * Lisa Simpson
 * Maggie Simpson
 * Fat Man (couch gag)
 * David Letterman