Buck Rogers in the 25th Century (1979)

"The original space man! The ultimate trip! Buck Rogers swings back to earth and lays it on the 25th Century!"

20th-century astronaut Buck Rogers awakens in the 25th century after a freak accident puts him in suspended animation for 500 years. Upon returning to Earth and discovering the planet is recovering from a nuclear war, Buck uses his combat skills and ingenuity to protect Earth and fight evil throughout the galaxy alongside starfighter pilot Colonel Wilma Deering and robot companion Twiki.