Alexander Graham Bell didn't invent the telephone (sort-of knew that one), Walter Raleigh had bugger-all to do with introducing potatoes to Europe (new fact, but entirely believable) and the Arctic was named after the brown/grizzly bear, ursus arctos (bear bear); not the polar bear, ursus maritimus (sea bear), and more bogglingly, not vice versa!
You're never too old to learn frankly dubious new shit from your favourite TV personalities.