The agreement with Sky, is that there must be at least 8 teams in the top flight. Whilst there was uncertainty over Belle Vue, Leicester and Coventry (that would leave 6 if none came to the tapes in 2017), then there was uncertainty over Sky showing speedway in 2017. Thankfully, all uncertainty about Coventry and Leicester is now over (and hopefully Belle Vue too), so Sky will continue to show speedway in 2017.