 I'm Christopher Kimball and this is Milk Street Radio. If there's one thing Oscar Mayer was good at, it was selling hot dogs that really stood out from the crowd. They invented a way to put a yellow band around their sausages. And their advertising said, look for the brand with the yellow band. If you're going to make a fortune off of hot dogs, you have to know whom you're selling to. They realized in the 1930s that they should market to children.