August 19, 1950: The First Saturday-Morning Cartoon Block Begins

Today in 1950 · Saturday, August 19, 1950

An American family watching television at home in the 1950s

An American family watching television at home in the 1950s · Evert F. Baumgardner, National Archives, CC0, via Wikimedia Commons

On this Saturday morning in 1950, American children woke up to something new. ABC became the first US network to broadcast Saturday-morning television programming made for kids — the opening act of what would become one of the great rituals of American childhood.

Two live shows premiered that morning. 'Animal Clinic' brought real animals into the studio with facts about their care; 'Acrobat Ranch,' broadcast live from ABC's Chicago operation, was a circus-themed variety show hosted by Jack Stilwell as 'Uncle Jim,' featuring two young tumblers billed as Tumbling Tim and Flying Flo, with children from the audience competing in games and stunts.

Neither show is remembered today, but the idea they carried — that Saturday morning belonged to children — became a US broadcasting institution that lasted for decades. Every cereal-bowl cartoon marathon that followed traces back to this quiet August morning.

Also on this day

  • The First Battle of Naktong Bulge ended in a UN victory after fourteen days of fighting on the Pusan Perimeter.
  • Congress passed a law allowing the immigration of military dependents regardless of national-origin quotas.

🎵 On the radio that week: America’s No. 1 song was “Goodnight Irene” by Gordon Jenkins and The Weavers (Billboard best sellers) — a folk song adapted by Lead Belly, who died broke in December 1949 — one year before it became the biggest hit of 1950. That sound never really left — we recreate 1950s doo-wop and slow-dance ballads every week: read the stories behind our songs or listen on the lovesong1950s channel.
🎬 At the movies: Disney's first all-live-action film, “Treasure Island,” was the nation's No. 1 box-office draw (Variety) — Robert Newton's Long John Silver fixing the movie-pirate image forever.
⚾ In sports: Eddie Sawyer's “Whiz Kids” Phillies sat 5.5 games clear of Brooklyn in the National League, while Detroit led a four-team American League fight with the Yankees three back.

Sources: Cord Cutters News: 75 years ago, ABC's first Saturday morning · Saturday Mornings Forever: Acrobat Ranch · Arizona Daily Sun: The roots of children's television · Wikipedia: August 1950 · Billboard best-seller charts, 1950 (issue scans) · Variety National Boxoffice Survey, 1950 (Lantern scans) · Retrosheet 1950 game logs and box scores. Every fact above is drawn from the records linked here — no dramatization, no invented details.

More from this series: Today in 1950 — the daily archive · every post from August 2026

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