Friends, Big Bang, Cheers Stars Join Forces for Cheeky James Burrows Tribute Skit — Watch Video

It’s the ultimate Must-See mashup.

NBC’s two-hour Must See TV: An All Star Tribute to James Burrows (Sunday, 9/8c) will kick off with a five-minute, celeb-packed skit featuring cast members from such Burrows-helmed classics as Friends, Will & Grace, Cheers and The Big Bang Theory. (The special commemorates Borrows’ 1,000th episode of TV.)

Even Charlie Sheen makes a cameo in the elaborate parody video, which is available for your viewing pleasure above.