Hard Time on Planet Earth is an American science fiction television series that aired on CBS as a midseason replacement from March 1 to June 21, 1989. Airing for 13 episodes, the series starred Martin Kove; it was created by Jim and John Thomas, whose previous collaborations include The Rescue as well as the Predator franchise. Scheduled opposite NBC's Unsolved Mysteries and ABC's Growing Pains on Wednesdays, Hard Time on Planet Earth ranked 65th out of 81 programs upon its premiere. Ratings for the series never improved and the series was canceled by CBS in May 1989.