This statistic shows the results of a survey conducted from February 4, 2014 to March 11, 2015 among approximately 28,869* American adults on the servings of dolly madison snack cakes eaten by the people living in their household. According to this survey, 0.49 percent of American households use 8 or more.
Here is a "Sponsored by" message for a broadcast of A Charlie Brown Thanksgiving. From:
Dolly Madison Snack Cakes (Neat-To-Eat Treats!)
Also includes a partial Zingers commercial which mentions the Zapper!
This aired on local Chicago TV on Wednesday, November 25th 1980.
The Museum of Classic Chicago Television - for more fun!