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ABC Saturday Morning Ad from 1973 (large)

From Bill N – Back in the late 1960’s or early 1970’s, Saturday morning had these cool features between the cartoons. One was “In The News,” and the other two were “Grammar Rock” and “Multiplication Rock.” The latter two were cartoons. “In The News” was CBS, but which of the other two were ABC or NBC? Thanks for clearing the confusion.

Mr. Pop History – Both Multiplication Rock and Grammar Rock – one minute features – were presented between cartoons on ABC. Here’s an ad from 1973.

Come back soon, as I answer, to the best of my knowledge, another one of your pop history/culture questions.