Unchained Reaction
Unchained Reaction is really a science and engineering reality game show that airs on the Discovery Channel. It best known for hosting the science entertainment is judged and executive-produced from Jamie Hyneman and Adam Savage series MythBusters.
The series pits two teams of backgrounds against each reaction contraption. Teams are given to create a series of mechanisms based on a subject and are supplied with identical sets of materials and tools. Mid way through each week, those teams are supplied with a surprise"missing link" thing that they have to increase the middle of their machines. The winner is selected Hyneman by Savage, and also a judge.