Matthew Perry's 'Saturday Night Live' Debut: Go Behind the Scenes as He Hosts in 1997 (Flashback)

Matthew Perry chatted with ET during his 'Saturday Night Live' hosting debut in 1997. The actor opened up about what it was like to be a part of the sketch comedy show, how it was a 'dream come true' for him and how it was similar and different from his experience on 'Friends.' Matthew also shared which celebrity impressions he'd be making on the show, including one of his fellow 'Friends' co-stars, Matt LeBlanc, as he channeled his best Joey Tribbiani for a parody sketch about the sitcom. Plus, the 'SNL' cast opened up about working with Matthew as ET got an inside look at his rehearsal for a skit with Will Ferrell.