Beam Me Up, Scotty!: The "In the ass" quote (see below) has frequently been a victim of this. Many people thought it was a variant of "In the butt, Bob!" or even a black lady giving an Ebonics variant such as "It be the butt, Bob." In reality, it was said by an ordinary housewife named Olga, who gave the answer hesitantly and uncomfortably.
Executive Meddling: Inverted. The ABC debut was slated to be pre-empted by a press conference with Robert McNamara covering the Vietnam War. The conference wound up being delayed a half hour, allowing ABC to air the premiere while CBS "vamped" until the conference began. Some viewers who expected to see Password on CBS defected to The Newlywed Game, giving it a larger sampling than it likely would've had otherwise.
Old Shame: A 1977 episode where a woman answered the question, "What is the strangest place you've ever gotten the urge to make whoopie?" with, "in the ass". Eubanks denied that this ever happened (probably because of the mis-remembered or embellished details, as stated above) until the clip surfaced online in the early 2000s. He later came to show a great deal of disgust at it on blooper shows, probably because of said common beliefs and mutations it took.
The Pete Best: Before Johnny Jacobs, Scott Beach was the original announcer. Supposedly, Beach was fired after a few months because he would sing protest songs to the audience during breaks.