There have been a lot of favourite shows over the years, but those are the main ones, I can recall and which feature heavily even to this day in my DVD collection (or on my wish list). The ones which still give me many hours of viewing pleasure with nostalgic wallows now and then.
There are shows I watch/watched casually such as The Dresden Files, Without A Trace, Close To Home, Law & Order, Law & Order: SVU, Primeval, Location x3, Grand Designs (I'm a sucker for watching other people's houses <g>), Torchwood, Waking The Dead (up till Frankie/Mel left), Inspector Morse...but they're not in the 'OMG, I missed X, my life is over!' category.
LabRat
[Sorry for the multiple posts - for some bizarre reason it was the only way the mbs would let me post this.

After a certain amount of text, a few paragraphs, the post wouldn't go through. But it was fine if I kept each post to just a portion of the text. Go figure. Beats the heck out of me.]