Coffee Break Machine

"In 1967, Henson used the 'Wheel-Stealer' puppet for an IBM training film called 'Coffee Break Machine'. In the sketch, the monster (with frightening eyes and fangs) devours a complex machine as the machine describes its purpose and construction. At the end of the sketch, the talking machine explains that its primary purpose is to produce the greatest explosion known to man. The monster promptly explodes. This sketch was also performed in October, 1967 on The Ed Sullivan Show. (It was also later performed on the George Burns episode of The Muppet Show using the Luncheon Counter Monster.)" (Wikipedia)