After management changes at 1070 WIBC in 1970, the station vastly increased their coverage of the Indianapolis 500 for 1971. Davidson was invited back to host a one-hour nightly quiz show about the Indy 500. The show was unnamed for the first two to three years, but for a brief time it was called "Stump the chump". Lou Palmer called the program "Do it to Donald" and Chuck Riley called it "Stymie the Limey." Callers won prizes if Donald did not know the answer.