Saturday Night Live is marking its 50th year with a weeklong celebration, including a blockbuster homecoming concert and a three-hour primetime special. Above, SNL cast members pose on the show's set in September 1992. Front row, from left: Chris Farley, Al Franken and Melanie Hutsell. Middle row, from left: Chris Rock, Julia Sweeney, Dana Carvey and Rob Schneider. Back row, from left: Adam Sandler, David Spade, Ellen Cleghorne, Kevin Nealon, Phil Hartman and Tim Meadows. (AP)