What's Happening!! is an American sitcom that aired on ABC from August 5, 1976, to April 28, 1979. The show premiered as a summer series. With good ratings and reviews, and after the failure of several other shows on the network, What's Happening!! returned in November 1976 as a weekly series. It remained a weekly series until 1979; ratings were modest. What's Happening!! was loosely based on the Eric Monte-penned film Cooley High. From 1985 to 1988, a sequel series called What's Happening Now!! aired in first-run syndication, with most of the major cast members reprising their roles.