Saturday Night Live (SNL), original name (1975–77) NBC’s Saturday Night, American sketch comedy and variety television series that has aired on Saturday nights on the National Broadcasting Company (NBC) network since 1975, becoming one of the longest-running programs in television. The series is a fixture of NBC programming and a landmark in American television. NBC developed Saturday Night Live as an edgy comedy series designed to appeal to viewers ages 18 to 34, and, notwithstanding a few slumps, the show has consistently attracted new viewers who have entered that demographic group while remaining a favourite with many who have moved