Debuting September 1928, it was the most popular children's show of that era due to the powerful 50,000-watt power of WOR. Carney sang, played the piano, told stories and introduced a variety of features: the "Earnest Savers Club" which encouraged setting up accounts at the Greenwich Savings Bank; a "Healthy Child Contest"; a "Talent Quest" that provided screen tests for winners. Each program began with Uncle Don arriving in the imaginary autogyro he called his "puddle-jumper." His opening song was widely known:
Hello nephews, nieces too, Mothers and daddies, how are you? This is Uncle Don all set to go, With a meeting on the ra-di-o! We'll start off with a little song To learn the words will not take long; For they're as easy as easy can be, So come on now and sing with me: Hibbidy-Gits has-ha ring boree, Sibonia Skividy, hi-lo-dee! Honi-ko-doke with an ali-ka-zon, Sing this song with your Uncle Don!
Uncle Don's Strange Adventures, a 1936 Big Little Book, retells Carney's story about a mystery cruiser.
Urban legend
For decades, a widespread rumor claimed that one night Uncle Don had inadvertently spoken into an open microphone, saying "There! That ought to hold the little bastards." However, this has been debunked as untrue. The rumor was later resurrected in the 1950s, when an audio recording of the mistake turned up on a Kermit SchaeferBloopers album, though this was later shown to be a fake recreation. Ultimately, this became attributed to later children's shows as well. This scenario, a host inadvertently talking into an open microphone at the end of a live show, was used as a comeuppance for lead character Lonesome Rhodes in the fictional film drama, A Face in the Crowd. Amplifying the urban legend, a scene in that film shows two real Variety pressmen handling an issue of Variety with a headline reading "L.R. BLOOPER TOPS UNK DON'S" comparing Rhodes to Uncle Don. As a play on the urban legend, jazz musicianSonny Rollins sometimes introduced himself, facetiously, as "Uncle Don", a nickname that continues to this day. On A Night at the Village Vanguard, he says, "Good afternoon everybody, boys and girls. This is Uncle Don....Good afternoon, my name is Sonny Rollins."