Conversation so far:
What is the term doughnut dunkers
Doughnut Dunkers was a comedy routine which Red Skelton wrote with his wife after observing people eating doughnuts and drinking coffee.
was Red Skelton's Doughnut Dunkers skit amusing?
The Doughnut Dunkers skit won Red Skelton and his wife the Loew's State engagement and a handsome fee.
how much was the fee that Red Skelton won for doughnut dunkers?

Question: When did he start doing doughnut dunkers
Self-contained rewrite: When did Red Skelton start doing doughnut dunkers?