Nickelodeon Studios opens in Florida.
This is a list of notable events, premieres, releases, series cancellations and endings, and other business ventures for Nickelodeon in the year 1990.
Shows
Series premieres
- July 4 - Wild and Crazy Kids
- August 13 - Family Double Dare
- Acquired shows
- January 1 - Maya the Bee
- April 2
- Fernwood 2 Night/America 2 Night (both series aired in rotated runs)
- The Many Loves of Dobie Gillis
- July 4 - SK8-TV
- July 9 - Camp Runamuck
- August 4 - Alfred Hitchcock Presents
- August 6 - Flipper
- August 13 - Outta Here!
- October 1
- Kids World
- Nickelodeon's Most Wanted: Yogi Bear
- October 7 - Cartoon Kablooey
Series finales
- May 25 - You Can't Do That On Television
- July 6 - Pinwheel (production on the show ended in 1984, and the last project of the show was the live roadshow that toured the country and reruns airing between 1984 and 1990, when the show officially ended)
- August 26 - Nick Rocks
Network departures
- March 4 - Star Trek: The Animated Series
- June 30 - The Mysterious Cities of Gold
Specials
- Nickelodeon Studios Opening Day Celebration
- December - Christmas at Eureeka's Castle
Video games
Events
- June 7 - Nickelodeon Studios opens at Universal Studios Florida
Nickelodeon character debuts
- "Tommy Pickles and the Great White Thing": Tommy Pickles, Spike, Lou Pickles, Didi Pickles, Stu Pickles, Phil and Lil DeVille
People
- January 26 - Christopher Massey is born
- April 23 - Matthew Underwood is born
- June 15 - Denzel Whitaker is born
- June 28 - Nick Purcell is born
- July 16 - James Maslow is born
- July 27 - Indiana Evans is born
- September 15 - Matt Shively is born
- September 21 - Christian Serratos is born
- September 29 - Doug Brochu is born
- October 18 - Jordan Calloway is born
- November 2 - Kendall Schmidt is born
- November 13 - Kathleen Herles is born
- December 28 - David Archuleta is born
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