Everyone knows the easiest way to sell something to the masses is through animation. Hasbro had the Transformers and G.I. Joe cartoons to sell toys back in the 1980s, and in the 1970s AT&T produced this whimsical animated romp which the company used to extoll the benefits of its regulated monopoly.
It's actually more of an over-hyped cautionary tale than anything, scaring the country into thinking that buying anything other than AT&T hardware and service could leave them without a reliable home phone. But surprisingly when Ma Bell was split up in 1984, none of this came to pass. Did a cartoon actually lie to us? [YouTube]