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BBM was not the only source for radio ratings back in the early 60's. Another company was Elliot-Hayes. Whether this is legit or CHUM hired the company on their own I am not sure. But quite the claim from the CHUM chart this day in 1962....Makes you wonder what BBM was showing during this time.
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It speaks volumes that one of these radio stations no longer exists, and the other two have ratings so small you need a magnifying glass to see them.
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It looks like Gord and Wally are depicted in the stack of characters (1st and 3rd)?