There were accusations of using a laugh track - recorded laughter added in post-production - so having authentic laughter was a selling point if you’d stumbled across a show coming on after something else.

I’m sure those ones also used laugh tracks, because they didn’t say “Actual audience laughter.”

In addition to making the show sound more authentic, there’s a bonus tourism boosting angle: “filmed before a live studio audience” that could include YOU!

One fun thing to do when visiting relatives come to Los Angeles is to go be part of the studio audience of a favorite show. And it’s free. (Maybe not some shows, I haven’t done research.) We took my cousin to “Jeopardy!” back when Trebek was host. Watching later we could hear his distinctive laugh. And it was fun to know the winner ahead of time.