As the show gears up to celebrate its milestone, here are 12 moments over the past five decades when the show didn't just reflect pop culture — it drove it.

Live” was built with a cast of young no-names performing countercultural comedy. Fifty years later, it is firmly part of the ...

Live' veterans participated in a "Tonight Show Joke Off," a riff on SNL's "Weekend Update" segment during which they battled it out for the best punchlines.