Hockey

Like making the sport watchable, literally, instead of restricting viewers access at every opportunity. Or in the same vein, when you actually can watch a game not having your viewing absolutely ruined by the buggy, distracting, ugly digital board and glass ads. Or having shitty broadcasters who know nothing about the teams or players covering playoff games and national broadcasts.

And that's just viewing, not to mention rules, officiating, player organizations and player safety, and the many other issues.