First observation: look at the potential for growth in China and India.
It's probably misleading to think in terms of population / price per person, though certainly China is a much more affluent country, because I'm not sure who is buying the rights and who is actually watching. That said I'd say that the Burmese are far more enamoured with football than the Chinese. Burmese being like Thais in that regard.But surely those same things apply to most foreign markets (lots of channels, rival interests, relatively poor populations). What matters is the underlying demand - if that's there, broadcasters will find a way of tapping it. Is there any reason that underlying demand should be so much lower in China than, say, Burma (2p per person compared to 41p per person, with Burma presumably having a significantly lower per capita GDP)?