The Isle of Man is insane.
Although I've never ridden one of these and entering senior geezerhood, I like me some bike racing-- especially the Isle of Man(Peter Hickman was baaad).
I'm actually shocked it's not more popular here in the states. It would be huge for a major network carrier to cover it live. There's challenges there because of the size of the track and length of the race, but I think people would tune in and it would be very popular. I know it was available for streaming live last year, but ESPN has like 9 channels. Putting this on one of them would definitely get the viewers.
Although you certainly run the risk of showing a fatality on live TV. So there's that.