Not a documentary, but a handsome girl explaining math (German only, sorry)
Huh? Can't believe you're not mentioning "Fawlty Towers"Old British serries which I still watching: The fool and horses, Black Adder, Alo Alo - evergreens and old mysteries Frost, Inspector Morse, David Suchet and Poirot, Wallander...Sherlock Holmes...
I started watching it last weekend; I really like it so far. BBSes are making a comeback somehow. I'm not sure if it has something to do with the fact that some people are getting fed up with social media.