If you like Sopcast, also check out TVU player, in addition to other programs.
TVU is great for hockey.
Schedules for most major sports can be found at
http://www.myp2p.eu/I think it's pretty much illegial, but when you read the small print, it says that all liability for copywrighted broadcasts is laid upon the broadcaster--the person who puts it on there. So by viewing it, you should be fine, I think.
I think some networks could actually welcome it...it also spreads their commercials. Get as large of an audience as possible.