Watch Mythbusters Season 7 Episode 22 Unarmed and Unharmed Online Stream. Science lovers or should i say Geeks, just like myself is very excited for the latest episode of my favorite show, the Mythbusters. The latest is the Mythbusters Season 7 Episode 22 Unarmed and Unharmed. In this episode, Adam and Jamie test an old gun-slinging story; Grant, Tory and Jessi test another myth from the movie "Speed." The episode will be shown on December 9, 2009 9:00 PM in Discovery. I just dont want to miss this one. Watch Mythbusters Season 7 Episode 22 Unarmed and Unharmed Online Stream