There are only a handful that I watch that haven't been in syndication for over a decade, and only one that I watch religiously and that's The Office.
Love Hell's Kitchen when I remember to catch it, and Ramsay's Kitchen Nightmares.
I am addicted to X Files, MASH and ST, both OS and TNG.
I've also been finding myself watch a ton of investigative shows lately like Forensic Files and Snapped. If I ever figure out what I want to be when I grow up, I could see myself in some area of forensic science.
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I also watch marathons of America's Next Top Model and Solitary when I can catch them. I don't like waiting weeks, I like to take my reality tv in large, one day doses. (And really, those two and Hell's Kitchen are the only reality shows I enjoy.)
I used to watch Dr. Who regularly, but I kept forgetting and lost track and have never caught back up. Same with Heroes.
I was soooooo excited when the new V started (I loved the original when I was a lil kid) so I'll probably add that to my regular weekly line up when it comes back on in March.