Not sure. I do know of one show on the original discovery channel called "Flightpath". It takes a Canadaian point of view of aviation. It centers on one form of flying either by aircraft type, or by organization. They have done segments on the RCMP flying around up north doing investigations. Air Tindi, the float ops that move the cargo here there and everywhere. Ontario's Air Ambulance, and even the Canadian Armed forces. It's one of the best aviantion programs in my opinion, and beats anything Disc Wings has had too offer in recent years. ALso, in Canada, discovery wings is now the Military Channel.
I have it on Thursday Mornings here in Southern Ontario, I dunno about your area.