Any similarity between this 1978 Safeway grocery store ad and The Wizard of Oz is purely intentional:
Scotch Buy was the chain's store brand, apparently replaced long ago by other, better names. Is Scotch Buy supposed to suggest...value? Among the products the store offered under that banner: beer! Can you imagine heading down to your Safeway on a Friday night for a six-pack of Scotch Buy beer?
Well, Ray Bolger, then in his mid-seventies, seems to enjoy the overall brand if not the beer.