>I use both of these...
>www.titantv.com
>www.zap2it.com

I was using Yahoo's service for a few years; the only trouble was that it kept adding to my AdBlock list, because they seem to change the URLs where the ads come from quite often. Other than that, it was OK, it kept my settings well, and had the important feature of saying in advance what was a rerun, and if it was, when was it run first time. That way I could decide whether there was anything to watch (usually I knew by date - amazingly - whether we've seen something or not).

Then a couple of weeks ago they just went wild. They completely revamped the website - my bookmark doesn't work anymore, my settings are useless, I have to click a dozen times to get what I want, it's all got that flashy rounded look with less information (doesn't say whether it's a rerun anymore) and takes me four pages to reach the actual listing, gets far less on one page, has even more ads, and, yes, it sucks. I deleted the bookmark and promised I'll publicize my findings soon, which I'm doing here. They suck.

Didn't try titantv, because I found zap2it first, which works fine for me. They also don't show the date of the first run, but may be just the networks not publishing it anymore. Which means I'm not watching, just in case :). Reducing the channels to my own list wasn't too smooth, but not too bad either for a one-time operation. After that, it does exactly what I need it for.