The Greatest American Hero

The Greatest American Hero (1981) is a action & adventure, comedy, crime with 3 seasons created by Stephen J. Cannell, rated 7.2/10.

The chronicles of  teacher Ralph Hinkley's adventures after a group of aliens gives him a red suit that gives him superhuman abilities. Unfortunately, Ralph, who hates wearing the suit, immediately loses its instruction booklet, and thus has to learn how to use its powers by trial and error, often with comical results.