Yeah, I'm writing about Hulu again. It's because I've found a few excellent canceled shows that you can watch on Hulu. If you haven't checked these out, I recommend them.
Firstly, The Dresden Files. Harry Dresden is a wizard and private detective for hire in Chicago. While the TV show wasn't nearly as good as the books are, Linda and I enjoyed it. Definitely worth watching.
Secondly, Journeyman. While it seemed at first to be a Quantum Leap knockoff, after watching it I realized that it was much more. Much closer to The Time Traveler's Wife than to Quantum Leap.
Lastly, Surface. A great show that got canceled when it was just getting good. A shame. People complained that it moved slowly, but I really liked it.