I'm not sure if everyone knows this.
But Hulu.com offers up all the America's games for past seasons. If you have an Xbox you can stream them to your TV with a program called PlayOn (2 week trial last i checked, it costs 40 bucks but is WORTH it). There's another program called TVersity that does it as well, but i haven't used it.
Anyway, I just watched the story of the 1974 Steelers.
I'm gonna watch these all day, I might even skip the Super Bowl tonight.