If it was 1197, it was definitely 1972. February 22, 1972 to be exact. The copyright dates are very screwy for most of the pre-79s, but we definitely know when every single pre-79 debuted.
Incidentally, if Zoom premiered in January 1972, would anyone know which exact day? Jan. 3, 10, 17, 24, or 31? I'm guessing Jan. 3, since it would make sense for a show to premiere at the very start of the year, and the remake debuted that same week 27 years later, Jan. 4, 1999. But then again, 3-2-1 Contact premiered Jan. 14, 1980, not Jan. 7. And as I remember hearing, 3-2-1 Contact replaced Zoom, so therefore Zoom had an 8-year run, airing its last episode on Jan. 11, 1980.