Pinky and Perky is an animated children's television series first broadcast by BBC TV in 1957, and revived in 2008 as a CGI animation.
The title characters are 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!" They were created by Czechoslovakian immigrants Jan and Vlasta Dalibor. The characters of pigs were chosen because the pig is seen as a symbol of good luck in the former Czechoslovakia. 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 spoke and sang in high-pitched voices, created by re-playing original voice recordings at twice the original recorded speed; the vocals were sung by Mike Sammes while the backing track was played at half normal speed (Sammes did the same job for Ken Dodd's Diddymen, as Ross Bagdasarian did for the original Chipmunks in the early 1960s)—hence the expression "Pinky and Perky speed", when an LP record is played at 45 rpm or 78 rpm instead of the correct 33⅓ rpm. Pinky and Perky would often sing cover versions of popular songs, but also had their own theme song, "We Belong Together".