In this episode Mark talks about one of his favourite TV shows: the American science-fiction television series "Quantum Leap", created by Donald P. Bellisario. Set in the near future, the series stars Scott Bakula as Dr. Sam Beckett, a physicist who theorised that it may be possible to time travel within one's own lifetime, who decides to test his theory by stepping into the "Quantum Leap accelerator" and who subsequently vanishes and continuously finds himself leaping through space and time by temporarily swapping his consciousness in place of other peoples' to correct what are believed to have been historical mistakes in the past. However, Dr. Sam Beckett ultimately finds himself trapped in the past, looking into the eyes mirror-images that are not his own, "and driven by an unknown force to change history for the better". Dr. Sam Beckett is guided on his journey through time and space by Admiral Al Calavicci (played by Dean Stockwell), an observer of Project Quantum Leap from Sam's own time, who appears in the form of a hologram that only Sam can see and hear. And as every episode's intro, narrated by co-executive producer Deborah Pratt, explains: "...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" - however, the question still remains as to whether and when Dr. Beckett will ever return home. The series ran for five seasons, from March 25, 1989 through to May 5, 1993 - and is often sighted as one of greatest TV series ever made.
