The original central characters were twins Brandon (played by Jason Priestley) and Brenda Walsh (played by Shannen Doherty), who moved with their parents, Jim and Cindy, from the Twin Cities to Beverly Hills.
Although the first season had low ratings, Fox stuck by 90210, even re-launching it in 1991 with an innovative summer mini_season. Viewership increased dramatically and cast members Priestley and Luke Perry became instant teen idols.
The infamous Melrose Place was initially a spinoff from the show. In latter seasons, the success of Melrose Place's development into an ultra-sensationalistic soap opera influenced the direction of its predecessors, which also headed off into the same direction.
Star's later series Grosse Pointe satirised the production a high-school soap opera, set in Los Angeles. The show-within-a-show was clearly intended to represent "90210".
As a result of the show, 90210 is the most familiar ZIP code for people who live outside the United States. It is often used to try US-only services like GoogleLocal.
Beverly Hills, 90210 was a popular primetime television soap opera that aired from October 4, 1990 to May 17, 2000 on FOX in the United States and subsequently on various networks around the world.
The "90210" in the title refers to one of the suburb's postal codes (or ZIP Code).
As a result of the show, 90210 is the most familiar ZIP code for people who live outside the United States.