British Speedway has to be on ITV or Sky Sports imo.
Premier Sports just doesn't have the numbers to grow the Sport and I can't see people signing up to TNT Sports just for Speedway tbh, BSN is great for die hards but that's not going to get new fans on board either imo.
Pretty much everyone will have Sky Sports if they're a Sports fan as it's got everything you want so if British Speedway was going behind a subscription service then Sky is the best option as it's the most likely platform to get new fans on board but that boat has sailed unfortunately.
Only other way I see the Sport growing is ITV4 because it's free to air, So let's see what happens next season.