On April 25, 1954, the National Broadcasting Company (NBC) aired what is widely described as the first publicly announced coast-to-coast color television broadcast in the United States, using the RCA-developed color system that would be adopted as the NTSC (National Television System Committee) color standard. The event was presented as a demonstration of commercial color broadcasting’s technical feasibility and its compatibility with existing black-and-white receivers, a central selling point for broadcasters and manufacturers. Background and technology Color television development involved multiple competing systems through the late 1940s and early 1950s. RCA, a dominant manufacturer and a major investor in NBC, developed a compatible color system that encoded color information while preserving the ability of monochrome sets to display the signal in black and white. That compatibility was critical for a gradual market transition and a key factor in the NTSC’s 1953 adoption of RCA’s approach as the U.S. color standard. RCA’s system transmitted luminance (brightness) and chrominance (color) signals in a way that allowed existing black-and-white receivers to ignore the chrominance and display a standard monochrome image. This approach differed from earlier attempts that required entirely new receivers and different broadcast standards. The April 25 broadcast The April 25, 1954 broadcast used NBC facilities and RCA equipment to transmit color programming across the network. Contemporary coverage and company records identify this date as a major public demonstration and the beginning of regular color broadcasts by NBC, although earlier experimental and limited color transmissions had occurred. The broadcast showcased the commercial potential of color television and was promoted in conjunction with NBC and RCA’s efforts to sell both the idea of color programming to advertisers and color television sets to consumers. The event signaled that nationwide color transmission using the NTSC-compatible system was practical, even though widespread consumer adoption would take several more years due to costs, limited color programming, and technical challenges. Reception and impact Initial consumer uptake of color television was slow because early color sets were expensive and production of color programming was limited. Nonetheless, the demonstration on April 25, 1954, helped establish industry momentum. Networks gradually increased their color offerings, and by the 1960s color broadcasts became commonplace as prices fell and more programs were produced in color. The RCA/NBC victory in establishing a compatible NTSC standard shaped the U.S. television industry for decades. Compatibility preserved the installed base of monochrome sets, encouraged manufacturers to adopt the standard, and set a technical path followed until the later transition to digital broadcasting many decades later. Notes on sources and interpretation The April 25, 1954 date is associated with NBC’s first major public coast-to-coast color broadcast using the RCA/NTSC-compatible system; earlier experimental color broadcasts and demonstrations by RCA and others occurred in prior years. Historical accounts from broadcasters, manufacturer records, contemporary press coverage, and technical histories of television corroborate April 1954 as a key public milestone rather than the very first experimental color transmission.