I watched and listened to him on the radio. He made sports trivia fun and made it matter.
Sports Extra was an exceptionally well done program. Lee Leonard, who was on NBC Grandstand and the first person to speak on ESPN, was with Mazur and Jerry Izenberg, who was an outstanding columnist, also did features. I think it was on Channel 5 for 30 minutes on Sunday night. The would talk about all of the New York teams, do some commentary, some comic bits, and they would close the show with songs which related to a story they did.
Within the past two weeks, I read somewhere that Sports Extra was a pioneering show to have a sports news program stand alone in a regular time slot. I don't know if that is true because sometimes things get done outside of a major market and they aren't noticed. It was a great show in the days before we had all-sports networks.