Just watched it and got 4 right; though by ‘right’ I really mean remembered within the few seconds available, which isn’t bad considering it takes me circa 30 seconds to deduce which day of the week it is: Tuesday if anyone’s struggling 
Struck me as quite easy questions for a specialist swotter; but quizzing a couch potato is a world away from being interrogated in a lonely black chair swamped by arc lights and a tick-tock goes the clock
John Humphrys looked rather old and haggard I thought, much like the time-worn prog