What is performing or writing for "Saturday Night Live" really like? TODAY.com talked to past and present cast to learn what really goes on behind the scenes.

Here is everything you need to know about the "SNL" 50th Anniversary Special, including TV and streaming options for the show ...

And be sure to tune in for Sunday's live one-hour red carpet ahead of the special starting at 7ET/4pm PT, airing on NBC, E!, ...

One-time-only collaborations included Bonnie Raitt and Chris Martin. Arcade Fire, David Byrne, Post Malone and Nirvana.