He is just linking to other streaming sites like front row sports. Not so much viruses (though I would not download any video viewer they suggest) but there will be a metric crap ton of ads to close. The sites that are legit run either flash or HTML 5 video.
There was a UPS one last year that had the best hidden closing 'X' icon I have ever seen. We had to post a screen cap here so people could close it and see the video. I think I magnified it about 400x to find the stupid thing.