Laugh tracks have been around since the early 1950s and it’s all thanks to one (reviled) sound engineer who invented them. But as much as people like to hate laugh tracks most shows wouldn’t be at all funny without them.

Data Centers: Can't Live With Em, Can't Live Without Em
48:14

Short Stuff: Did a vampire legend help win the Cold War?
12:55

Doin’ Science in the National Radio Quiet Zone
50:47