Some older British shows that are widely considered classics include "Doctor Who," "Fawlty Towers," "Monty Python's Flying Circus" and "The Avengers." Some of these programs are aired in the United States on PBS and classic television channels like Retro TV.
"Doctor Who" is a long-running BBC series that first began in 1963. The original run lasted until 1989 and featured seven different leads playing the time-traveling Doctor during that time. The show is still aired as of 2015 and retains its canon all the way back to the first episodes, with each new lead taking the role of a new Doctor who replaces the old one.
"Monty Python's Flying Circus" is a classic sketch comedy show born from the routines of a surrealist comedy group. It ran from 1969 to 1974 and also spawned three feature films and a number of albums.
"Fawlty Towers" only had two seasons, one in 1975 and one in 1979, but is frequently mentioned as one of the greatest British comedies of all time. It starred John Cleese, who had formerly been in "Monty Python's Flying Circus."
"The Avengers" had nothing to do with the Marvel comic series of the same name. It was a spy show with science fiction elements that aired from 1961 to 1969.