Some have said that these are "unaired" but I've seen at least two of them on TV, so I suspect they've all actually made it onto TV in one way or another. In any event, nothing special, but a peek at what the aborted Windows 7-sponsored Seth MacFarlane comedy show could have been like.
COMPUTER - Family Guy & Windows
WINDOWS STEWIE - Family Guy & Windows
STATE OF WINDOWS 7 - Family Guy & Windows