Question: Frosty's Winter Wonderland is a 1976 animated Christmas television special that is a sequel to an animated Christmas special that first aired on December 7th, 1969, that features what comedian as the film's narrator?

Context articles: A Flintstone Family Christmas
The Little Troll Prince
The Little Rascals Christmas Special
Olive, the Other Reindeer
Frosty Returns
Frosty's Winter Wonderland
Holidaze: The Christmas That Almost Didn't Happen
Frosty the Snowman (film)
Yogi Bear's All Star Comedy Christmas Caper
Jackie Vernon (comedian)

A Flintstone Family Christmas is a 1993 animated Christmas television special featuring The Flintstones.
 It was produced by Hanna-Barbera and aired on ABC on December 18, 1993.
 The special was nominated for a Primetime Emmy Award in 1994 for Outstanding Animated Program (For Programming Less Than One Hour).
 This is the only appearance of Stoney and the final appearance of Pebbles and Bamm-Bamm in their adult forms as well as their children, Chip and Roxy.
 Hanna-Barbera continued doing the series but with the original timeline.
The Little Troll Prince (onscreen title: The Little Troll Prince: A Christmas Parable) is a 1987 animated Christmas television special produced by Hanna-Barbera.
 Backed by the International Lutheran Laymen's League, it has strong Christian themes of unconditional love, self-sacrifice, and redemption, with a substantial Protestant influence.
 The story was a written parable script for the Christmas special with a lesson about the feeling of joy and love in one's heart, that can lead one from a cruel world to a light-hearted world.
The Little Rascals Christmas Special is an animated Christmas television special based on the "Our Gang" comedies of the 1920s, 1930s, and early 1940s.
 It first aired December 3, 1979 on NBC.
Olive, the Other Reindeer is a 1999 CGI animated Christmas television special written by Steve Young, and directed by Oscar Moore.
 The feature was produced by Matt Groening's The Curiosity Company (best known for "Futurama"), and animated by DNA Productions.
 It first aired on December 17, 1999 on Fox, produced by 20th Century Fox Television and Flower Films.
 The special combines paperlike character art in 3-D environments.
 Sometimes, traditional animation is used.
Frosty Returns is an animated Christmas television special starring Jonathan Winters as the narrator and John Goodman as the voice of Frosty the Snowman.
 The special was directed by Bill Melendez and Evert Brown and features music by Mark Mothersbaugh.
 It first aired in 1992 on CBS.
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.
Holidaze: The Christmas That Almost Didn't Happen is an American stop-motion animated Christmas television special directed by David H. Brooks, that originally aired in 2006 and produced by BixPix Entertainment, Once Upon a Frog and Madison Street Entertainment.
 The show's plot has Rusty Reindeer (Fred Savage) the brother of Rudolph the Red Nosed Reindeer joining a support group for depressed holiday icons, and he and the other characters search for the meaning of Christmas and help a young boy (Dylan and Cole Sprouse) to get on Santa's nice list.
 Rusty's cohorts include Candie, the Easter Bunny (Gladys Knight); Mr. C, the grouchy cherub (Paul Rodriguez); Albert, the Thanksgiving Turkey (Harland Williams); And Trick and Treat (Brenda Song and Emily Osment) the teenage Halloween Ghosts.
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.
Yogi Bear's All Star Comedy Christmas Caper is a 1982 animated Christmas television special starring Yogi Bear.
 It is the third and final Yogi Christmas special.
 Produced by Hanna-Barbera, it first aired on  21, 1982 (1982--) on CBS.
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".