When we took a vacation to Solana Beach at the end of September we stayed in a condo which happened to have the first season of The West Wing and so we started watching it. It didn't take more than a few episodes to get us hooked and when we got back we scoured Craig's List and found the complete series and started watching.
This has to be the most enjoyable way to watch any series. It's now about 6 to 7 weeks after we started watching it and we're on season five. Each season ends with a great cliff-hanger and I love that we can be watching the resolution in the next few minutes instead of having to wait half a year for it.
When the dialog gets too complicated (I am simple) I can rewind and switch on sub-titles and there are no commercials. I still haven't bought a Tivo but watching this series all the way through has pretty much convinced me to stay away from standard TV programming and go to something that will stream.