I don't think there are many "in the clear" sports feeds that don't require a subscription. You're best options would be Fox Soccer channel,Gol Tv,(both for soccer) and Setanta sports (soccer,rugby, Gaelic Games) I am almost positive that there are special license(s)/contract(s) that are required to broadcast these channels in a bar/pub/cafe, but sadly i think they are going to make you pay through the nose to obtain them.