Charles Douglass,Laugh Box,Laff Box,Laughter Machine,Canned Laughter,Audience Reaction Reproducer, - YouTube
Looney Tunes Bugs Laff Box Cib HTF Set 6 In Box Warner Bros Reading | eBay
The Mystery of the Laff Box – thebaronblog
Stuff You Should Know on Instagram: “Laugh tracks have been around since the early 1950s and it's all thanks to one (reviled) sound engineer who put them in a 'Laff Box'. But…”
Laugh Tracks in TV Sitcoms: The History Behind the Original Laff Box - Thrillist
A brief history of how the laugh track shook up TV's best shows
Charles Douglass' Laff Box | Warehouse 13 Artifact Database Wiki | Fandom