Quantum Leap is an American television series that was broadcast on NBC from March 1989 to May 1993. The series was created by Donald P. Bellisario, and starred Scott Bakula as Dr. Sam Beckett, a scientist who becomes lost in time following a botched experiment. Dean Stockwell co-starred as Al, Sam's womanizing, cigar smoking sidekick and best friend. He appeared to Sam as a hologram that only Sam and a select few others could see or hear. The series features a mix of comedy, drama and melodrama, social commentary, nostalgia and sci-fi, which won it a broad range of fans. It is particularly notable for the end of each episode, where Beckett leaps into his next persona (the story of the next episode), usually uttering "Oh boy".

Show summary

In the series' first episode, Sam appears in the past with no memory of who he is or how he got there. Referred frequently throughout the series as a "swiss cheese brain", Sam's partial amnesia prevents him from remembering most of the details of his own life; all he knows is that he's not who everyone in the past seems to think he is. Fortunately Admiral Al Calavicci (Dean Stockwell), Sam's best friend, appears to him in holographic form and explains that Sam is the victim of a time travel experiment that went wrong. Now Sam is lost in time, and his colleagues are having difficulty retrieving him and bringing him back to his own time.