Doctor Who

Any list of this kind would be incomplete without the Time Lord. Classic 1963– 89 episodes of the British sci-fi series are hard to find, but the dozen post-2000 seasons are enough to make a Whovian out of any viewer. HBO Max

Quantum Leap

America’s answer to Doctor Who ran only from 1989 to ’93 but still offers much enjoyment. Scott Bakula plays a scientist who leaps into the bodies of historical figures. NBC.com