When the movie was broadcast on network TV in 1979 as the first episode of the spin-off TV series, a few changes were made. The original, sensual opening credits sequence was replaced with a simple starfield, some of Buck's more suggestive comments to Wilma were cut and Tigerman's death was removed (allowing the character to return in later episodes). Most notably, a newly filmed epilogue was added, introducing viewers to Buck's apartment, the notion of Buck working for Dr. Huer and New Chicago and, most memorably for fans of actress Erin Gray, it marked the first appearance of Wilma's trademark catsuit.
The TV version of the film (called "Awakening") features scenes in Buck's 25th century apartment that was not seen in the theatrical version. The epilogue dialogue / setup for the TV series also takes place here.
Twiki's line "I'm freezing my ball-bearings off!" in the theatrical version is replaced with "My micro-discs are turning blue!" in the TV version. In the theatrical version, "Weatherly," a pilot killed in the pirate raid is female. In the TV version, footage of a male pilot is substituted.
The TV-episode version of this film substitutes the voice of Vic Perrin for William Conrad during scenes involving the Draconia.