Quantum Leap - Complete Season 4 (1991)

When Sam recovers from a quantum leap, he finds his memories to be incomplete, particularly with the knowledge about himself and the project; Al would later refer to this as his "Swiss-cheesed memory"; while Sam appears to others (with the exception of animals, young children, and "abnormal" people) and himself in a mirror as another person (which in the first episode, when he finds himself in the past as a supersonic-jet test-pilot, Sam initially attributes to his partial amnesia).

EPISODES:
1 "The Leap Back"
2 "Play Ball"
3 "Hurricane"
4 "Justice"
5 "Permanent Wave"
6 "Raped"
7 "The Wrong Stuff"
8 "Dreams"
9 "A Single Drop of Rain"
10 "Unchained"
11 "The Play's the Thing"
12 "Running For Honor"
13 "Temptation Eyes"
14 "The Last Gunfighter"
15 "A Song for the Soul"
16 "Ghost Ship"
17 "Roberto!"
18 "It's A Wonderful Leap"
19 "Moments to Live"
20 "The Curse of Ptah-Hotep"
21 "Stand Up"
22 "A Leap for Lisa"