http://tvtuga.com/ Go to Futebol Live! Click the "Liga Portuguesa" link near the bottom and you'll see the Benfica game in a list of other games. I'm not exactly sure what I did after that... I just know I clicked the link that read "LUSO I A transmitir: TVI (Benfica vs Guimaraes às 19h15)" Good luck and enjoy!
Are you talking about that Sopcast message that pops up? If so just ignore it the video will play anyway.
Most of the action seems to be on Benfica's left/Guimares right - attacking from both teams on this side.
My Portuguese is a little rusty so I could only pick out a couple of words here and there. The commentator mentioned something about Adu, "felininho" which I believe is small cat or a kitten and finally something about many were killed during his time with DC United.
as i've been learning portuguese, and usually books and normal convo don't teach you curse words, does that mean what I think it does? LOLOLOL