Question: The ringer and 90210 both appeared in what year?

Context paragraphs:
Tori Spelling: Victoria Davey Spelling (born May 16, 1973) is an American actress, television personality, socialite and author.  Her first major role was Donna Martin on "Beverly Hills, 90210" in 1990, produced by her father, Aaron.  She appeared in a string of made-for-television films, including "A Friend to Die For" (1994), "A Carol Christmas" (2003), "The Mistle-Tones" (2012) and "Mother, May I Sleep with Danger? " (2016), and independent films such as "The House of Yes" (1997), "Trick" (1999), "Cthulhu" (2007), "Kiss the Bride" (2007) and "Izzie's Way Home" (2016).  She reprised her role of Donna Martin in "Beverly Hills, 90210"'s spin-off, "90210", in 2009.

Ringer (TV series): Ringer is an American television series that initially aired on The CW from September 13, 2011 to April 17, 2012.  The series stars Sarah Michelle Gellar, who plays twin sisters Bridget Kelly and Siobhan Martin.  On May 13, 2011, it was reported that the project had been picked up to series by The CW.  On October 12, 2011, The CW ordered a full first season of 22 episodes.

Philip Moon (actor): Philip Moon (born November 5, 1961) is an American actor of Asian descent who has appeared primarily in television.  He is best known for playing Keemo Volien Abbott in the CBS soap opera "The Young and the Restless" from 1994 to 1996, Mr. Lee in the TV series "Deadwood" (2005), and the thug Woo in the 1998 Coen brothers film "The Big Lebowski".  In 2007 he played the leading role in Allen Blumberg's drama film "Ghosts of the Heartland".  In 2011 he appeared in the "Dead Ringer" episode of "".

Adaline (musician): Adaline, born Shawna Beesley on October 23, is an alternative-pop Canadian singer-songwriter from Ottawa.  Many of her songs have licensed for multiple television shows including Grey’s Anatomy, 90210, Ringer and Lost Girl.

Matt Lanter: Matthew Mackendree "Matt" Lanter (born April 1, 1983) is an American actor, voice actor, and model.  He gained fame by playing Liam Court in The CW hit teen drama series "90210", a spin-off of the 1990s Fox series "Beverly Hills, 90210".  He also appeared in some major released films, such as "", "Disaster Movie", "", "Sorority Row", "Vampires Suck" and "The Roommate".  He is the voice of Anakin Skywalker in "" and "Star Wars Rebels".  He stars as soldier Wyatt Logan, a time traveler, in "Timeless" on NBC.

Ringer Glacier: Ringer Glacier ( ) is a glacier, 5 nmi long, heading on the northeast flank of Saint Johns Range and flowing northeast to Miller Glacier, Victoria Land.  Named in association with the distinctive ring-shaped moraine at its mouth, The Ringer ( ).  The name first appeared on a 1961 New Zealand map; approved by the Advisory Committee on Antarctic Names in 1995.

90210 (season 4): The fourth season of the American television series "90210" was announced by The CW on April 26, 2011 .  It was later announced it would return to its original Tuesday 8:00 pm time slot, as a lead-in to new series, "Ringer", and premiered on September 13, 2011.

Jake Hanson: Jake Hanson is a fictional character in the American television series "Melrose Place", the second series of the "Beverly Hills, 90210" franchise.  Portrayed by Grant Show, Jake Hanson appeared in the first five seasons of "Melrose Place".  He also appeared in two episodes of the second season of "Beverly Hills, 90210" and the pilot of "Models Inc." ("Melrose place" first spin-off).

Steve Peterson (actor): Steve Peterson is an American actor was seen as Stanley in "The Body" at the Matrix Theatre, King Arthur in Dennis Gersten’s" The Author’s Thumb," Tranio in "Taming of the Shrew" at the Globe Playhouse, Aguecheek in "Twelfth Night" for both Shakespeare at Play and Ellen Geer's Theatricum Botanicum, and as the Ghost in Mark Ringer’s production of" Hamlet."  He has appeared at the Write/Act Repertory Theatre Company in "Murder, Mayhem and the Macabre", "A Patriot for Me, Transports of the Heart", and "Bleak House."  Other Los Angeles stage appearances include "A Month in the Country" at the Odyssey Theatre, "The Letter Writer" at The Santa Monica Playhouse, and Agatha Christie’s "Black Coffee" at the Sierra Madre Playhouse.  Peterson has appeared in numerous productions at San Diego’s Old Globe Theatre, at the Grove Shakespeare and Nevada Shakespeare Festivals, and the UK/AZ Festival in Phoenix, as well as Glendale’s A Noise Within.  Peterson’s Television credits include appearances on the daytime serials "Days of Our Lives" and "General Hospital" as well as primetime series "Murphy Brown, Murder, She Wrote", and "Mama’s Family," to name a few.  Peterson can be seen in the cult film classic "Lobster Man from Mars", and as one of the many Elvi in "Honeymoon in Vegas."

Lauren Elaine: Lauren Elaine (born November 7, 1983) is an American fashion designer, actress, and model.  As a designer, she has appeared as a featured guest on "America's Next Top Model" as well as Bravo's "The Rachel Zoe Project".  She is also the first designer to ever present a couture runway show at sea, hand-selected by Crystal Cruises.  As an actress, she has appeared in Fox Searchlight's "The Ringer" (as "Brandi"); all of Dierks Bentley's #1 country music videos (as "Becky"), beginning with "What Was I Thinkin'"; Miramax's "Sin City"; and as a model in fashion campaigns for Chanel and Nordstrom .

Supporting paragraphs: 90210 (season 4) Ringer (TV series)
Answer: 2011