I think like most 80s tv shows, time won't have been kind, but my nostalgia is a pleasingly upholstered and comfy place for these things to reside. I think all these shows had mostly the same plot week-in-week-out, the series arc yet to be invented. You just needed the premise (renegade US officers from 'Nam, stolen/borrowed military hardware, etc. – though it had to be righteous and you knew they were wrongly accused or that they weren't entitled to the stuff they'd borrowed, let's not have any moral ambiguity), a bunch of notable good-guy characters (each with their own schtick) and interchangeably anonymous bad guys whose comeuppance was assured. And don't forget the pre-credit joke.
If I recall, Airwolf (like most shows of the era) had a minimal budget so had to reuse the same aerial stock footage, which meant they were always fighting a bad guy in a rather series incongruous biplane (and Airwolf would always loop-the-loop, very badly). Then I think someone else made a fourth series with a completely different cast and not enough budget even for stock footage, so they simply recycled footage from the earlier series. Simpler times.
The A Team only had about six car crashes, which they'd also recycle.