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This episode walks through a single Wikipedia disambiguation page for the letters RCA and finds them attached to music, medicine, mathematics, sports and warfare. The best known is the Radio Corporation of America, whose trademark has been owned by Talisman Brands since 2022. Its legacy includes RCA Records and labels such as RCA Camden, RCA Red Seal and RCA Victrola, Nashville’s RCA Studio B, the red, white and yellow RCA connector, the RCA Studio II game console and Indianapolis’s RCA Dome.

In science and engineering, RCA names the right coronary artery, rolling circle amplification of DNA, the RCA clean for silicon wafers, the ripple-carry adder circuit, and RCA0, the Recursive Comprehension Axiom system at the base of reverse mathematics. Business and economics add root cause analysis, recycled concrete aggregate, resource consumption accounting and revealed comparative advantage. The same letters also stand for football clubs in Algeria, Ivory Coast, Morocco and Aruba, religious bodies, art academies, and the military term riot control agent, the formal name for tear gas.

• Rowing Canada Aviron places English and French words around Canada to keep the RCA initials.
• Cricket bodies include the Rwanda Cricket Association and the Rajasthan Cricket Association in Jaipur.
• Raja Club Athletic of Casablanca is one of several football clubs sharing the initials.
• Art schools include the Royal Cambrian Academy in Conwy, the Royal Canadian Academy of Arts and the Royal College of Art in London.
• Royal City Avenue is an entertainment district in Bangkok, and Rail Cargo Austria runs freight trains.