There are many advantages to owning television show seasons on DVD. One of the largest of these benefits is the bonus material that complements the episodes on a television DVD release.
A television DVD release is usually full of exciting extras that can add to your enjoyment of the program. Behind-the-scenes featurettes and commentary tracks can give viewers a glimpse into the workings of a show that most people aren't aware of when watching the program on its own. Deleted scenes can also be interesting, showing viewers things that directors perhaps wanted to leave in but had to remove due to time constraints.
A television show on DVD also makes it easier to find your favorite episodes. On VHS, viewers would have to fast-forward through tapes of episodes to find the one that they wanted to watch. On DVD though, short plot descriptions make finding a certain episode quick and easy.
The time between a show airing on television and its DVD release has decreased immensely compared to a few years ago. If a season of your favorite show just ended, you can usually count on its DVD release before the premier of its next season. This is a win/win situation for both studios and consumers, as studios can release the DVDs in conjunction with the premiere of a new season, and viewers get crystal-clear versions of a show's most recent episodes in a timely fashion.