A great new documentary, Johnny Carson: King of Late Night, debuts tonight on PBS. Check your local listings for times and repeat airings.

Before you watch it, though, treat yourself to some outtakes.

Drew Carey and Ray Romano remember their debuts on The Tonight Show with Johnny Carson.

In this clip, Jerry Seinfeld and Garry Shandling talk about when they went to dinner with Johnny Carson in 2000 and learned about the future of show biz from a legend who could even predict where TV would go.

Steve Martin discusses his relationship with Johnny, and his perceived reputation vs. his real persona.

Here, Joan Rivers recalls pranking Johnny when she became a mother.

And here is Johnny’s bandleader, Doc Severinsen, revealing why he made his name with his fashion choices.