1983 for me as well. I think that this may have been the first year?? I used to fly New York Air back in the day and get OP (acutally TravelBank) miles. NY Air then formed their own FF program called ???? (anyone know the name for 5 bucks?) and matched CO "TravelBank" program. After they were absorbed back into CO a few years later, so was their FF program with the milage match again which essentially doubled my miles.