1975-The Lost Saucer

After a Friday night of having to sit through The Rockford Files and Police Woman, kids could get up on Saturday morning and have their own live action shows to watch in addition to cartoons.
The Lost Saucer was more Sid and Marty Krofft weirdness (although decidedly less so than, say, H. R. Pufinstuf, or Lidsville.)
As pretty much outlined in the opening sequence, The Lost Saucer had two time-traveling futuristic androids. Fi (Ruth Buzzi) and Fum (Jim Nabors) land their flying saucer on present day Earth evidently in the front yard of a young boy named Jerry (Jarrod Johnson.) Jerry and his babysitter Alice (Alice Playten) are waved in by Fi and Fum to check out their saucer.
Nervous about onlookers, Fi and Fum take off with Jerry and Alice inside, damaging the time travel controls in the process.
Episodes depicted encounters on earth in various time periods, usually following a social or environmental theme.
16 episodes were produced. The first six episodes were later rerun as part of The Krofft Supershow 's first season. There was a VHS tape release, of course long out of print now.

1977-Bigfoot and Wildboy

More Saturday morning weirdness from Sid and Marty Krofft. Originally part of the Krofft Supershow as 15 minute segments, it became its own series in 1979 and 30-minute episodes were produced. There were a total of 20 episodes.
The series has not been released to DVD except as a segment on the Sid & Marty Kroffts Saturday Morning Hits DVD.