My preferred way to view quality television is on DVD. I'm willing to wait a little in order to bang off a good series unedited without commercials and without waiting a week for a new episode.
Last year, I watched the entire series of The Wire on DVD. The Wire had such an effect on me, I've just bought all five seasons on DVD so I can watch it again and again. Yes, it's that good.
Last week, I decided I wanted to watch Mad Men. One tweet later, I was meeting Elvis to pick up season one on DVD. We're six episodes deep and digging it. It's not The Wire, but it's great television.
Prior to my purchase of The Wire on DVD, the only television show I've ever bought on DVD has been The Simpsons. What shows do you own on DVD?