Doctor who is a british science fiction television programme produced by the BBC since 1963. The programme depicts the adventures of a Time lord called "Doctor who" an extraterrestrial being  from the planet Gallifrey. he explores the universe in a time-travelling space ship called the TARDIS. 

its exterior appears as a blue british police box, which was a common sight in britain in 1963 when the series first aired.

Acompanied by a number of companions, the doctor combats a variety of foes, while worikng to save civilations and help people in need.