Wow, people are actually upset about this. I thought it was hilarious actually, since no ads on TV or radio mentioned it and the guides didn't mention a crossover either and the only place that mentioned it was the internet, it was designed to get us worked up. It's not even like Not Without My Anus, since that episode was built up off Cartman's Dad buildup, this is just a little "ha". We did get Family Guy on The Cleveland Show, so there's that.
Anyway the episode wasn't bad, but I wish they didn't whiplash into the kids' plot halfway through the episode. LOVED the 360 gag since I see that happen a lot with parents who buy their kids and I've been an online n00b playing Call of Duty and have gotten cursed out by people who take the game waaaaay too seriously.