Pinky and Perky was a children's television series first broadcast by BBC TV in 1957, and revived in 2008 as an animated adaptation. The title characters were a pair of anthropomorphic puppet pigs, named Pinky and Perky, who were originally going to be named Pinky and Porky but there was a problem registering Porky as a character name. This was solved by Margaret Potter, the wife of their producer, Trevor Hill, who also discovered them, when she woke him up one night announcing "I've got it! Pinky and Perky!" The puppets, who had only very limited movements, looked very alike. Pinky wore red clothes and Perky wore blue, but this distinction was of little use on monochrome TV, so Perky often wore a hat. Pinky and Perky also performed guest slots on other shows, including several appearances on Sunday Night at the London Palladium. The puppets also appeared on TV in the United States on a number of episodes of The Ed Sullivan Show where they shared the bill with the Beatles and Morecambe and Wise.