Films inspired by or based upon tv shows

I'll start with one that is among my favorites from the early days of live television, Marty, which aired on "The Philco Television Playhouse" in 1953. It was written by Paddy Chayefsky, starred Rod Steiger and Nancy Marchand, and was directed by Delbert Mann, who two years later directed the feature film version starring Ernest Borgnine. The feature film won 4 Oscars: Best Picture, Best Actor, Best Director, and Best Screenplay.