Hey there,
It sounds like football is a large part of his life; therefore even though you might not be interested in the football itself, you have to ask yourself one question...are you interested in him? if yes, then maybe paying an interest in what he is passionate about might make you closer together. And if you start paying attention to his interests, it will be easier to say how you feel i.e. "i've tried to engage with you about your interests, can I talk to you about mine, such as the TV i'm interested in?"
As previously mentioned on here, relationships are about compromises and it might make you a stronger couple, and it would give you something at least to talk about.
At the end of the day, if you like him enough either one of your TV habits should not jeopardise that and if you're not okay with that then maybe this relationship isn't for you....