Question about copyright

[matthughes2]

Hi there! I had an idea for a show I want to put together on livestream but I have a few questions.

The idea is, essentially, to broadcast unconventional, fun, and impactful play by play for NFL football games - basically, live play by play for certified non-steakheads. The livestream would not feature any part of the sports telecast - it would be offscreen and muted, unavailable to the viewer of the livestream. They would be expected to queue up the livestream and play it alongside the original copyrighted telecast as a supplement - think of it as rifftrax but for sports.

My questions are, a) does this violate Livestream policy, and b) in your opinion, does this violate the copyright policy of whatever network is presenting the original telecast?

I'll be interested to hear your thoughts. Thank you so much!