An audio recording of the Super Bowl I post-game show has been recovered by the Pro Football Hall of Fame. It aired following the conclusion of the first AFL-NFL World Championship Game on Sunday, January 15th, 1967. The game pitted the Kansas City Chiefs (AFL) against Green Bay Packers (NFL). The Packers, coached by Vince Lombardi, won.
An Ohio man recorded the television audio using a reel-to-reel tape recorder, held onto it for 50 years, then donated it to the Pro Football Hall of Fame. The roughly 27-minute recording has been uploaded to YouTube:
I may be wrong, but I believe there was only one post-game show rather than separate shows for both networks. Also, although the Pro Football Hall of Fame calls it the “CBS postgame audio,” at the end of the recording Curt Gowdy and Paul Christman can be heard signing off. Gowdy and Christman were the NBC announcers for the game. That suggests the recording may in fact be from the NBC broadcast.