Quantum leap

[Magaret]

Theorizing that one could time travel within his own lifetime, Doctor Sam [Beckett] led an elite group of scientists into the desert to develop a top secret project known as Quantum Leap.
Pressured to prove his theories or lose funding, Dr. Beckett prematurely stepped into the Project [Accelerator], and vanished......
He awoke to find himself trapped in the past, suffering from partial amnesia and facing a mirror image that was not his own.
Fortunately, contact with his own time was maintained through [brain wave] transmissions with Al, the Project Observer who appeared in the form of a [hologram] that only Dr. Beckett can see and hear.
Trapped in the past, Dr. Beckett finds himself leaping from life to life, putting things right that once went wrong, and hoping each time that his next leap will be the leap home..........

[Couch Potatoe]

Jewelry store management tool that lets businesses auto-calculate gem weights, store digital images, and manage gemstone color grading. A software product by Quantum Leap Software Solutions

[Dave Paprocki]

a great improvement or important development in something: