My favorite episode is the one where they tried to turn a city bus at 50 mph to test a scene from a movie called "Speed".

It didn't matter how the passengers were arranged in the bus, the bus just wouldn't turn over. In fact, the bus was more stable in a corner when ghe weight was evenly distrubuted, to the surprise of nobody with a mechanical engineering degree.

The most instructive part for me was what they did have to do to make the bus barely tip over. They had to fasten a big piece of steel plate to the roof, disable the air shocks on one side, and put all the "passengers" (barrels of water) on one side.

Thus reminding everyone that engineers know more about how to build a bus than movie writers do. Which shouldn't be a surprise.

I absolutely loved mythbusters, but honestly I think it ran it's course. They were kind of running out of things to test towards the end.

Also search for Streamlined Mythbusters - they're fan-edits that remove fluff (lots of fluff in the later seasons) and rearranges the shows so each myth is played straight through before going to the next myth in the episode; instead of showing pieces of 3 different myths at a time bouncing between them.