In 1978, Walt Disney Productions re-released their G-rated space kids-on-the-run thriller, Escape To Witch Mountain on a double bill with its sequel, Return From Witch Mountain. Here's a 30-second TV commercial for that telekinetic double feature. Obviously, these movies were childhood favorites, in large part because I saw them at the drive-in with my family. Even then, though, I wished that we'd seen a lot more of their flying saucer and learned more about their people.
For the record, I actually enjoyed the 2009 update - I thought the kids were quite good, Dwayne Johnson was likable enough, and I have a serious crush on Carla Gugino - but I don't believe I ever saw any of the various other remakes and spin-offs done for television in the 80s & 90s. There was a short-lived TV series, too, right? Or am I misremembering? (I must be - I can't find one on the IMDb....)