Question: Which production company produced both Frosty the Snowman in 1969 and Frosty's Winter Wonderland in 1976?

Context paragraphs:
Frosty's Winter Wonderland: Frosty's Winter Wonderland is a 1976 animated Christmas television special and a sequel to the 1969 special "Frosty the Snowman", produced by Rankin/Bass Productions.  It returns writer Romeo Muller and actor Jackie Vernon as the voice of Frosty, while Andy Griffith stars as the narrator.  The special premiered on ABC on December 2, 1976.

Jackie Vernon (comedian): Jackie Vernon (born Ralph Verrone on March 29, 1924 – November 10, 1987) was an American stand-up comedian, actor and voice actor who supplied the voice of Frosty the Snowman in the Rankin/Bass Productions Christmas special "Frosty the Snowman" and its sequel "Frosty's Winter Wonderland".

Broadway Rose Theatre Company: In 1991, seven years after meeting in a summer stock production of "Joseph and the Amazing Technicolor Dreamcoat" in Shamokin Dam, Pennsylvania, Dan Murphy and Sharon Maroney (married), along with fellow performer Matthew Ryan (a native of Tigard, OR) and his partner Joseph Morkys, decided to move from New York City to start a summer stock theatre in Tigard.  The team pooled their savings of $21,000 and in November 1991, Broadway Rose Theatre Company was incorporated as a 501(c)(3).  In the summer of 1992, the first season of Broadway Rose Theatre Company was performed at the Deb Fennell Auditorium at Tigard High School.  The company produced five mainstage shows and a children's show in eight weeks, with an average audience of 32 people per performance.  The company lost $8,700 in its first season, but the following year the fledgling company received a $3,000 grant from the Metropolitan Arts Commission (a forerunner of the Regional Arts & Culture Council), to help bring the organization out of debt.  In 1993, the company produced "Oklahoma! " with no funds—putting the entire payroll on Dan's personal credit card.  The situation resolved itself as audiences picked up.  In 1994, the company received a $4,000 grant from the Metropolitan Arts Commission.  Audiences averaged 132 people per performance that year—a 313 percent increase from 1992.  In 1995, The Collins Foundation provided the company a $5,000 grant, allowing Sharon Maroney to become the company's first paid employee.  Platt Electric Supply became Broadway Rose's first title sponsor in 1996, providing a new level of stable funding (they would stay on as a title sponsor through 2012 when Harvey Platt sold the company).  In 1997, co-founders Matthew Ryan and Joe Morkys left Broadway Rose and returned to New York.  That year Broadway Rose held its first drama camp for young performers aged 8–11.  Also in 1997, Shoshana Bean, who would later become famous for portraying Elphaba on Broadway in the musical "Wicked""," starred in the Broadway Rose production of "Bye Bye Birdie."  The company's offices moved from Dan and Sharon's home to a Platt Electric Supply branch office in 1999.  Later that year, the Sherwood Arts Council contracted Broadway Rose to produce "Broadway Goes Hollywood", a fundraiser for SAC held at the historic Robin Hood Theater in Sherwood, OR.  Broadway Rose's annual budget rose to around $175,000 with ticket sales accounting for just under half of the total, and Dan's general manager position officially became funded, making him an employee rather than a volunteer.

Alice in Wonderland (1988 film): Alice in Wonderland is an Australian 51-minute direct-to-video animated film from Burbank Films Australia.  It was originally released in 1988.  The film is based on Lewis Carroll's classic English novel, "Alice's Adventures in Wonderland", first published in 1865, and was adapted by Paul Leadon.  Unlike many other adaptations of the novel, this one did not borrow elements from its sequel, "Through the Looking-Glass" (1871), combined into one film.  The production company produced a 73-minute adaptation of the second novel the year before, in 1987, entitled "Alice: Through the Looking-Glass".  The 1988 film was produced by Roz Phillips and directed by Rich Trueblood.  Quite uncommon among Burbank Films Australia's adaptations of classic literary works, "Alice in Wonderland" featured one original theme song, composed by Mark Isaacs.  The copyright in this film is now owned by Pulse Distribution and Entertainment and administered by digital rights management firm NuTech Digital.

Holiday Harmony: Holiday Harmony is the fifteenth original studio album by American folk rock duo America, released by Rhino Records in 2002.  Produced by Andrew Gold, it is a Christmas album.  The album contains a number of traditional Christmas standards, some of which were recorded with distinct parallels to America's hits.  For example, the "la-la-la" refrain in "Winter Wonderland" is strongly reminiscent of "A Horse With No Name," while "White Christmas" uses a guitar strumming style similar to that in "Tin Man."  The album contains three new songs: "A Christmas To Remember," "Winter Holidays," and the "Ventura Highway"-themed "Christmas In California".  "Winter Wonderland" became a minor hit during the Christmas season in 2002, reaching 26 on the Radio & Records Adult Contemporary chart.

Snow (EP): Snow is a 1993 EP by Cocteau Twins, released in December 1993 on Fontana Records.  It contains cover versions of the Christmas standards "Frosty the Snowman" and "Winter Wonderland".  It is out of print, though its tracks appear on the compilation "Lullabies to Violaine".

The Legend of Frosty the Snowman: The Legend of Frosty the Snowman is a 2005 American/Canadian direct-to-video animated film produced by Classic Media and Studio B Productions.  This movie has also been bundled with the original 1969 Rankin/Bass special and the CBS Entertainment Productions sequel.  The special originally aired annually on Cartoon Network in the United States, and it now airs on Kids & Teens TV in the country since December 11, 2011, despite the acquisition of DreamWorks Animation, which acquired Classic Media and renamed it DreamWorks Classics in 2012, and currently distributed by Universal Television.  Narrated and sung by Burt Reynolds, with veteran actor/voice artist Bill Fagerbakke in the role of Frosty, the film has very little continuity with the original, featuring a rebooted back-story.

Frosty the Snowman (film): Frosty the Snowman is a 1969 animated Christmas television special based on the song "Frosty the Snowman".  The program, which first aired on December 7, 1969 on CBS (where it still airs to this day), was produced for television by Rankin/Bass Productions and featured the voices of comedians Jimmy Durante as the film's narrator (Durante's final performance in a film) and Jackie Vernon as the title character.

Rudolph and Frosty's Christmas in July: Rudolph and Frosty's Christmas in July (commonly known by its on-screen title as Rudolph and Frosty: Christmas in July, or simply Rudolph and Frosty) is an American crossover Christmas television special produced by Rankin/Bass, featuring characters from the company's holiday specials including "Rudolph the Red-Nosed Reindeer" and "Frosty the Snowman".  It was filmed in Japan through "Animagic", a stop-motion animation process in the style of "Rudolph".  The film premiered in the US on November 25, 1979 on the ABC network.

Global Winter Wonderland Festival: Global Winter Wonderland is a multicultural lantern festival produced by the International Culture Exchange Group.  The festival made its US debut in Santa Clara, California on November 25, 2011, and drew nearly 500,000 people by the end of its run in early January 2012.  Five more Global Winter Wonderland festivals followed.  In 2012 Global Winter Wonderland was held again in Santa Clara, CA.  In 2013 it moved to Atlanta, Georgia and in 2014 and 2015 it was held in Sacramento, California.  In 2015, ICEG also produced Global Winter Wonderland in Tulare, CA – making it the first year to produce two events at exactly the same time.

Supporting paragraphs: Frosty's Winter Wonderland Frosty the Snowman (film)
Answer: Rankin/Bass Productions