They should just use unskippable commercials and add more. 4 commercials for the entire broadcast is really nice but I'd rather have 8 commercials than have to pay $5/month.
The NFL was really stupid about their live broadcast too. Last year (when I used it) they made it so if you switch the camera to many times it would kick on commercials, even if it was the middle of a huge play. All they had to do to keep me happy was just play commercials when the TV is normally on commercials.
I guess they are afraid that the user is going to switch over to another browser and surf the web, but honestly I do the same thing on TV but just a different channel.
EDIT: either way, this doesn't really affect me as I typically use nbc/cbs/abc/fox's website for my online content.
