I've just found a really good site that has TV listings for the U.S. and Canada. For those that are not familar with it, I think you'll like it.
Clink link:
Zap 2 It TV listings
You plug in your Zip or Postal Code, and then your service provider to get the listings for your area.
The reason I like it so much is because the listing is very customizable. You can set it up so you only see the TV channels that you want to see.
Then, you can adjust for either a 3 hour or 6 hour view.
Finally, you can set whether or not you want to see the program write-up or not.
Try it out, I don't think you'll regret it.