there are usually 4 options to click on. media player (which most people have), sopcast (download here SopCast - Free P2P internet TV | live football, NBA, cricket), veetle (which can be excellent quality and you can download here Veetle - Broadcast live streaming video in HD) and others (which is usually just click and play). think there is one called tvantz aswell but i dont have it.
for football games, say for the recent carcelona/madrid game there were about 100 different options to choose from. most were spanish, some english, but you can even get norwegian and iraqi(?). just for tonights game liverpool vs blackpool there wont be as many links but should be more than enough to find a few good ones in english.
i know you said earlier that you use justintv. this site links in with sites like that. in fact all it does is provide the link to other sites that are carrying the match.