Quantum Leap

Theorizing that one could time travel within his own lifetime, Dr. Sam Beckett stepped into the Quantum Leap accelerator and vanished... He woke to find himself trapped in the past, facing mirror images that were not his own and driven by an unknown force to change history for the better. His only guide on this journey is Al, an observer from his own time, who appears in the form of a hologram that only Sam can see and hear. And so Dr. Beckett finds himself leaping from life to life, striving to put right what once went wrong and hoping each time that his next leap will be the leap home.Quantum Leap featuring Scott Bakula and Dean Stockwell has one or more episodes free on NBC, available for purchase on iTunes, available for purchase on Google Play, and 4 others. It's an action & adventure and comedy show with 98 episodes over 5 seasons. Quantum Leap is no longer running and has no plans to air new episodes or seasons. It has a high IMDb audience rating of 8.1 (25,755 votes).