Jews in Mainstream Media
        
Overtly Jewish characters were not confined to Yiddish radio. They were also 
  a staple of mainstream shows.
Mrs. Pansy Nussbaum was a regular on The Fred Allen Show, as were Mr. 
  Schlepperman and Mr. Kitzel on The Jack Benny Show. Unlike the 
  varied, dynamic Jewish personages heard on Yiddish radio, though, these characters 
  tended to be remarkable above all for their overblown accents and love of "exotic" 
  foods like herring. 
The model for these Jewish stereotypes was a series of 78 rpm records cut between 
  the late teens and early '20s that featured the character of Mr. Cohen, an exaggeratedly 
  malapropistic Jew who could barely make himself understood. 
Another stereotypical Jewish character was that of the wise elder, like Papa 
  David Solomon in Life Can Be Beautiful, who usually came off sounding 
  like everyone's idea of an Old Testament sage. Such characterizations were not 
  racist per se, just stereotypical, much like the radio representations of other 
  ethnic groups, like the Italian Luigi in Life with Luigi.
The exception was The Goldbergs, a radio program that evolved into a 
  T.V. show, and which portrayed Jews as regular people with regular problems. 
  Irregular problems, however -- miscegenation, intergenerational strife, the 
  grungy day-to-day struggles of immigrant life -- were the exclusive domain of 
  Yiddish radio.