Odds, Ends and the "Mandela Effect"

What is the "Mandela Effect"? Is it a collection of false memories? Alternate realities converging on each other? Is it group think gone wrong? Is it aliens? Keith wants to know more about this phenomenon. Join Keith and his panel of non-expert experts as they explore what the Mandela Effect is and decide whether it's legit, or are there just a lot of crazy people out there remembering the wrong stuff.