The Greatest American Hero - Season 3 - Eps 8: Space Ranger
One of Ralph's students invents a radio telescope capable of decoding Russian satellite messages. The KGB tries to steal his system. When that maneuver fails, they decide to kill him before he can share his discovery with the CIA.
About The Greatest American Hero

Title: The Greatest American Hero
First Air Date: 1981-03-18
Last Air Date: 1983-03-03
Status: Ended
Rating: 7.2/10 (from 104 votes)
Language: EN
Seasons: 4
Total Episodes: 43
Network: ABC
Genres: Action & Adventure, Comedy, Crime
Production Companies: Unknown
Synopsis
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.
Cast

William Katt
Ralph Hinkley

Robert Culp
Bill Maxwell

Connie Sellecca
Pam Davidson

Faye Grant
Rhonda Blake

Michael Paré
Tony Villicana

Jesse D. Goins
Cyler Johnson

Don Cervantes
Paco Rodriguez