Wally: Beaver... you got crumbs in the butter again. Boy, if there's one thing I can't stand, it's crumbs in the butter.

Beaver: Sorry, Wally. That must have happened when it fell on the floor.

(LAUGHTER)

The old TV shows had a predictable rhythm: a joke, and then a pause for laughter. But what if the audience didn’t laugh?

Charley Douglass was a sound engineer who invented a machine to add audience sounds to television shows—laughs, but also applause, whistles, coughs and groans. His Laff Box operated like a pipe organ, and Douglass was a virtuoso.

But his work was secretive. He would pore over tapes, isolating precise reactions for his library of audience noises, then arrive at a postproduction editing studio rolling a large padlocked box. There was a certain amount of shame to it; nobody wanted to admit that live studio audiences sometimes fell flat, that if a joke didn’t get the desired chuckle, it was Douglass’ job—his art, many would say—to insert additional laughter. It was called “sweetening.” The comedian Milton Berle once asked Douglass to insert a guffaw after a failed joke. “See?” Berle said, “I told you it was funny.”

Douglass wasn’t always adding—in one legendary I Love Lucy episode, he had to cut laughter down. But mostly, he added what came to be known, and eventually reviled, as the laugh track, a simulated audience to watch a show with. Gradually, as laughter, once a group activity, became a private, idiosyncratic thing, nobody wanted a stranger’s guffaw poking them in the ribs at home.

Subscribe on Substack

Links:

• Decoder Ring Podcast: The Man Who Invented the Laugh Track, Slate, 2018

  
  

• Antiques Roadshow appraisal: A 1953 Charlie Douglass Laff Box (2010)

  
  

• Video: Demo of a Laff Box

  
  

• Video: Friends with no laugh track

  
  

• The Talk of the Town: Laughs - Stanley Mieses, The New Yorker, September 3, 1984

  
  

• Canned Laughter: A History Reconstructed – interview with Ben Glenn II, television historian (And Here's the Kicker via the Internet Archive)

  
  

• Related from this series: 88. Lucille Ball Maternity Clothes

This post is part of The American 250, a series featuring 250 objects made by Americans, located in America, in honor of the country's 250th anniversary. 250 words on 250 works, from January 1 to December 31, 2026.

Too many emails? To receive a weekly recap instead, please subscribe on my Substack blog. Instructions for turning on the weekly summary can be found here.

Have something you’d like me to consider for inclusion? Please feel free to leave a comment!