THE INVADERS was offbeat and unusual. I think it was a "Quinn Martin" production and the last time I watched some of the shows, on VHS tapes back about 20 years ago, I did notice typical elements of standard police procedural/action adventure TV fare of the late Sixties period.
That's also nice to hear they're bringing that old Apes series out of the mothballs. I never watched that one.
G.