Jesse Ventura's CONSPIRACY THEORY
They did a special on this recently.
If you're interested, give it a look.
According to some conspiracy theorists, surfing the space-time continuum is more than just a fictional flight to the '50s in a souped-up DeLorean—it is a terrifying reality. They claim it all began with a series of bizarre, top-secret experiments during World War II and continue in underground government laboratories to this very day.
YouTube video here