Here's a link to one of the highest rated TV movies of 1977, MAN FROM ATLANTIS, starring the pre-Dynasty star Patrick Duffy. I haven't seen it since it aired, and maybe it's as good as I remembered. Maybe not. There was a short-lived series, after a couple more of these TV movies aired, and they were of diminishing interest. This is due to either their not being so good, or me getting more involved with girls.
STAR TREK alums Herb Solow and Bob Justman produced.
The 1970s had scant Sci Fi on TV, and most of it was drek. But some of it was rather fun drek. Enjoy until YouTube pulls!