Battlestar Galactica: Greetings from Earth, Part 1 (1979)

Synopsis
In Part One of "Greetings from Earth", the Galactica encounters an "ancient" space shuttle that has seemingly originated on the elusive 13th Colony--namely, the Earth. On board the shuttle, six people are in a state of suspended animation. Once awakened, the six strangers hold out hope to the Colonists that their long and frustrating search for the 13th Colony is at last at an end. Veteran song-and-dance men Ray Bolger and Bobby Van head the guest cast. Originally telecast as a two-hour "special", "Greetings from Earth" has since been reedited as two one-hour episodes for syndication. ~ Hal Erickson, All Movie Guide