Rarely do we, the television audience, experience the privilege of a show that is equal parts educational and entertaining. Not that I'm learning anything from it, mind you, but other people very well might.
The simple premise is that our two hosts, Jamie Hyneman and Adam Savage, recreate the conditions of popular myths to verify or, as is more often the case, bust them. Of course, a premise alone does not a good show make. The fun comes from watching Jamie and Adam gleefully trounce the sometimes ridiculous stories. Adam is the energetic and outgoing one, taking every opportunity to goof off and make the work look more like play, whereas Jamie reacts to things with a much drier sense of humor and is somewhat more sarcastic. I was as disappointed as anyone upon learning of the inclusion of three "Jr. Mythbusters" for the second season, but my concern was ill-founded, as I realized that they had just as much personality as Jamie and Adam, and my conclusion is that anyone who thinks the show has gone downhill as a result of the new additions is simply averse to any change whatsoever. The show remains a favorite.
On a side note, you really have to admire how smart these guys are. Most of what they do can be traced back to physics, which makes me respect them all the more, based on my consistent inability to grasp the simplest of concepts in this particular field.