Editing Format war (section)

==1940s==
*[[Vinyl record]]s: [[Columbia Records]]' Long Play ([[LP Record|LP]]) 33⅓&nbsp;rpm ''microgroove'' record (introduced in 1948) versus [[RCA Victor]]'s {{convert|7|in|cm|adj=on}} 45&nbsp;rpm record, from 1949 (the introduction of the latter) into c. 1951. The battle ended because each format found a separate marketing niche (LP for [[classical music]] recordings, 45 for the pop "[[Single (music)|singles]]" market) and most new record players were capable of playing both types.
* The National Television System Committee (NTSC) was formed to settle the existing format incompatibility between the original 441 scan line RCA system and systems designed by the [[DuMont Television Network]] and [[Philco]]. In March 1941 the committee issued its plan for what is now known as [[NTSC]], which has been the standard for television signals in the United States and most countries influenced by the U.S. until the adoption of [[Digital television|digital]] and [[HD television]] formats with the official adoption of [[ATSC]] on June 12, 2009.