CGP Grey & Brady Haran

H.I. #2: Copyright Not Intended

H.I. #25: Fantasy Stage

H.I. #26: Brady Had Dinner With Darth Vader

H.I. #27 Bumper Christmas Special

H.I. #32: YouTube Half-Assery

H.I. #31: An Enigma Wrapped in an Egg McMuffin

H.I. #29: Courses for Horses

H.I. #33: Mission to Mars

H.I. #34: Line in the Sand

H.I. #28: Randomness in a Box