I don't know if you guys have been watching, but Discovery Channel is doing a 5 part series on video games. Ep 1 delt with the start of videogames, and Ep 2 delt with how the technology evolved, talking about Nintendo and Genesis.
It has been a great series so far, and Part 3 will be on Weds night, but if you guys missed the 1st 2 shows here are some links.
Rise of the Videogame Ep 1
Rise of the Videogame Ep 2