Every now and then I appear on the BBC World Service, which is broadcast in about 1,800 different countries — or something just short of that number. I aways enjoy explaining the NBA to the Brits, because their knowledge of basketball still trails their knowledge of cricket by something like 1,800 percent. In this appearance, we discussed the lack of rivalries in today’s NBA — which is astonishing to the British because teams can play each other as many as 11 times