Should I know?
It is the most beloved British Scifi show ever, and predates Star Trek.
It is often hokey, and often brilliant.
https://www.youtube.com/watch?v=Hmv80q5fAWU
Should I know?
It would take you at least 30 years to catch up. You could start by Googling him.
The Good Doctor is a Time Lord (with two hearts), from the planet Gallifrey, now almost the last of his kind after the planet's destruction in the Time War with the Dalek Empire. He is a temporal regulator who travels in time around the Universe in his TARDIS which is disguised as a blue London Police Call Box. Watched over by The Guardians of Time, the Time Lords live thousands of years and regenerate in a new body if they experience corporal death. Dr. Who has an affinity for humans and has traveled with human companions. Most of us old timers have seen around seven or eight generations of Doctor Who, beginning with reruns on PBS of Jon Pertwee(popular actor Sean Pertwee's dad).