Once, when I was in high school, I was watching TV with my mom, flipping channels, and she stopped at The Facts of Life.
"Oh, I love that show," my mom said, "and this must be a new episode. All the episodes I've seen have been in black and white!"
I was dubious about this.
"I see black and white episodes all the time," my mom insisted.
Hey, what did I know? I didn't follow the show - there might have been some black and white episodes out there.
A few days later my mom called me to her room.
"See?" she said, pointing to the TV on her dresser, "here's a black and white episode of The Facts of Life on right now!"
I then had to gently inform my mother that the TV in her bedroom was, in fact, black and white.