When I was very little, these were probably gone before I even had my own bedroom tv with cable. There were Trix Yogurt commercials(I think this was for the yogurt only,) that IIRC had some kids in a black and white world and the rabbit came and GAVE them the yogurt and the ate it and made the world fill with color. This made me scared to eat the fun sounding yogurt because the world was in color, and I was scared something bad was waiting to happen if they were ate in a full color world.
A childhood belief about dangerous food

others believed things like this
- I used to believe that if you weren't good, the Trix Rabbit would steal your yogurt.— Kyle
- When I was a kid I thought that when my parents were kids, the world was black and white and had no color...— KKM
- I used to believe that before color television the real world was in black and white. — Chris
- I use to believe that the world was black and white until color was invented for television.Anon
- after watching "the wizard of oz" i thought kansas was black and white and the rest of the world was color!— kelly
- I thought the world was black and white because of all the smoke from the bombs in Second World War.— Bjoern