Woody Allen is always on.

A similar trick of media with The Wire.

A history of the laugh track at Slate.

Claque at wikipedia.

Crowd duplication from zoic.

The Seat Filler at imdb.

(via and higher quality version at itisnotforyou)

• claque
• illusion
• laughtrack
• video
• woodyallen

Fun optical illusion.

• illusion
• opticalillusion
• optics