Yes, you've stumbled upon USA network's attempted extension to the original CBS series, much like "Galactica 1980" futhered the original Battlestar Galactica. Or not.
Also known as
Airwolf II," it followed the show's third season by about a year. It was one of the first US shows produced entirely in Canada, and in addition to the new cast, it had an entirely new production team to boot. They did this to shore up 79 syndicated episodes, a precedent I believe set by the original Star Trek. That's why you're seeing it now on RTV. That also probably means that they'll be getting back around to the first season pretty soon.
You can experience all the joy here:
Airwolf: Season 4
And here's a good
article or two from 1986 better explaining what happened.