https://www.hollywoodreporter.com/tv/tv-news/espn-documentary-film-origin-story-sports-heaven-exclusive-1236545624/

Premiering April 6, the documentary will take viewers back to the pioneering sports cable channel’s creation in the late 1970s. Watch the trailer (https://www.youtube.com/watch?v=OE8tL2vCiGU).