Matt Roush is probably one of the few TV critics I listen to, mainly because the guy is just smart and shares my taste about damn near everything. His Ask Matt column on
http://www.tvguide.com is a must-read for me and I check it out every Monday. He's one of the reasons I started watching The Amazing Race, and in the past he's been a big booster of all the shows I liked (Buffy/Angel/Firefly, 24, etc.).
TV Guide's website is kind of annoying because they're always wanting you to login/register but I submitted a fake name and email and it's all good. His stuff is definitely worth reading if you're a tv junkie.