Welcome to the true Big Bang Theory. Tonight’s Nova takes a look at the scientific quest for something so elusive, it makes Bigfoot look like a camera-hungry Kardashian. It’s the Higgs Boson – and to recreate the energy field that theorists suspect emerged from the so-called Big Bang, scientists need a very, very big particle accelerator, a lot of patience, and a lot of luck. Here we go. Check local listings.