Let's see... I think the original reason I started watching Mythbusters was because I wanted to watch something on the Discovery Channel on a weekly basis that I would be interested in. There were some one-time programs (one, two, or even three hours long) that I liked, but if I wanted to know when the next such program would be on, I would have to see a commercial for that program, which would very likely be seen only on that channel. To improve the chances of that happening, I decided that I would have to watch something on that channel at least once a week. I can't remember why I chose Mythbusters specifically, but once I started watching it every week, I always enjoyed watching it. These day, thanks to the TV schedule on the internet, the original reason isn't there anymore, but I still like watching that show.