American football could be made at least mildly interesting, with a couple modifications. For example, remove the helmets and the ball; add a large rock to each endzone, and points will be scored by members of one team smashing the faces of their opposing team's members against the rock in the appropriate endzone. Points will ultimately be irrelevant, though, as the team with the last man standing wins. The season ends when the rocks in each team's venue are so saturated that you can, in fact, squeeze blood from those stones. Once the sport gains mainstream acceptance, and the danger of it being dismissed as "too barbaric" subsides, it can then adopt the more appropriate name, Bloodrock. (Also, probably not a bad name for a death metal band this is actually the name of a 1970's hard rock band, so make sure the sport is turning an adequate profit to pay the appropriate licensing fees.)
Entirely unrelated to that tangent, does the BBC actually waste its time and resources covering the Superbowl? I know it's a big deal to idiots football fans in the United States, but does it actually warrant mention overseas?