Template:Evolution of Comcast NBCUniversal
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| 1909 | Independent Moving Pictures was founded by Carl Laemmle as the predecessor to Universal |
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| 1912 | Universal Studios Hollywood was founded after Independent Moving merged with several smaller film studios |
| 1915 | Universal City, California, was established as the entertainment district for the Universal Studios Lot. |
| 1924 | MCA Inc. was founded by Jules Stein as a talent agency to book musicians |
| 1926 | RCA Corporation launched the NBC Radio Network, and by 1939, NBC began broadcasting on television. |
| 1934 | Decca Records America was established and would later grow to become Universal Music Group |
| 1946 | William Goetz and Leo Spitz began managing Universal Pictures, after merging International Pictures |
| 1952 | Decca Records America acquired a controlling stake in Universal Pictures |
| 1958 | MCA acquired the Universal Studios film lot and later purchased Decca Records America, and Universal Pictures in 1962 |
| 1963 | Comcast was founded as American Cable Systems by Ralph J. Roberts |
| 1973 | Decca Records America is retired as a brand and renamed to MCA Records |
| 1986 | General Electric acquired RCA Corp and dissolved the company while retaining ownership of NBC |
| 1990 | Panasonic acquired a Controlling interest in MCA, but sold it to Seagram within five years after growing costs |
| 1998 | MCA Records acquired Polygram N.V. from Philips and was renamed to Universal Music Group |
| 2000 | Seagram Entertainment was sold to Vivendi and merged with StudioCanal to become Vivendi Universal |
| 2002 | NBC acquired Telemundo while Comcast acquired AT&T Broadband |
| 2004 | Vivendi Universal was consolidated with General Electric's wholly owned NBC to form NBCUniversal, while Universal Music Group was separated |
| 2013 | Comcast closed its acquisition of NBCUniversal from General Electric |
| 2018 | Sky Group was acquired from 21st Century Fox after a bidding war |
| 2020 | Peacock was launched |
| 2026 | Majority of NBCU's cable networks were spun off into another company named Versant, while Comcast later announced it would spin-off NBCUniversal and Sky into a separate company |