Network Awesome compiled some of Muppet-creator Jim Henson's delightfully dark early work, beginning with the infamous and violent Wilkins coffee commercials from 1957 (previously on BB) and going all the way to the 1970s. From Network Awesome:
Henson did a lot of other product sponsorship, but he also created loosely instructional sales videos for IBM in 1966. This unexpected combination solidified the unique stylistic qualities that make Henson's work so venerable. And as made obvious in the range of products that he "sold," Henson was not expressing personal loyalty to these companies but using their business as a way to develop his artistic style, and even to make fun of the typical associations with television advertising in his comedy.