Where's the {primary product} should be Where's the beef?  That question was asked by a little old lady named Clara Peller, on behalf of Wendy's restaurants.  It was later co-opted by Walter Mondale, and several others.

Peller later went on to advertise for Prego sauces, where she had determined 'It's in there' (indicating the beef could be found in Prego sauce).  Once she made the Prego advertisements she was fired by Wendy's as they felt the ability to continue advertising for them, using that same slogan, was done.

Baseball, Hot Dogs, Apple Pie and Cheverly does bring back memories.  It reminds me a bit of the old Not Your Father's {insert product name here}.  Lets see who has that answer and maybe some more old advertisement tag lines to try to remember.