When it comes to coveted cars that starred in movies, the DeLorean Time Machine from Back to the Future is always in the conversation. “In Expedition: Back to the Future,” Discovery Channel’s Joshua Gates and actor Christopher Lloyd embark on a journey across the U.S. in a four-part series to find the DeLorean and return it to the Michael J. Fox Foundation before a charity event. With cameos, deep dives and a heavy dose of nostalgia, this series encapsulates the spirit of fandom of the famous trilogy.