Not Three Mile Island (which was laughably insignificant compared to popular reception), but SL-1.
http://www.liveleak.com/view?i=ed1_1387144246&use_old_player=0
Protip: Don't design reactors with a single control rod.
If you do design a reactor with a single control rod, don't move the control rod with your bare hands. A fatal case of Impaled-to-the-Ceiling Syndrome may result.