The game show was called "Let's Make a Deal" and the hosts name was Monty Haul.
He offered 3 doors, the player picked one. Then he opened one of the two remaining showing that it had some junk in it. Then asked the player if they would like to switch to the other door (the one he did not open).
He is basically giving the player both of the other two doors. So, it makes sense to switch.
He offered 3 doors, the player picked one. Then he opened one of the two remaining showing that it had some junk in it. Then asked the player if they would like to switch to the other door (the one he did not open).
He is basically giving the player both of the other two doors. So, it makes sense to switch.