Question: Which Pixar franchise featuring the voice of John Ratzenberger began in 1995?

Context paragraphs:
WALL-E: WALL-E (stylized with an interpunct as WALL·E) is a 2008 American computer-animated science fiction film produced by Pixar Animation Studios for Walt Disney Pictures.  It was directed and co-written by Andrew Stanton, produced by Jim Morris, and co-written by Jim Reardon.  It stars the voices of Ben Burtt, Elissa Knight, Jeff Garlin, Fred Willard, John Ratzenberger, Kathy Najimy, Sigourney Weaver, and the MacInTalk system, and was the overall ninth feature film produced by the company.  It follows a trash compactor robot in a deserted world, left to clean a largely abandoned city.  However, he is visited by a probe sent by the "Axiom" ship, whom he falls in love with and pursues across the galaxy.

Cars (film): Cars is a 2006 American computer-animated comedy-adventure film produced by Pixar Animation Studios and released by Walt Disney Pictures.  Directed and co-written by John Lasseter, it is Pixar's final independently-produced motion picture before its purchase by Disney in May 2006.  Set in a world populated entirely by anthropomorphic cars and other vehicles, the film stars the voices of Owen Wilson, Paul Newman (in his final acting role), Bonnie Hunt, Larry the Cable Guy, Tony Shalhoub, Cheech Marin, Michael Wallis, George Carlin, Paul Dooley, Jenifer Lewis, Guido Quaroni, Michael Keaton, Katherine Helmond and John Ratzenberger.  Race car drivers Dale Earnhardt, Jr., Mario Andretti, Michael Schumacher and car enthusiast Jay Leno (as "Jay Limo") voice themselves.

Toy Story 3: Toy Story 3 is a 2010 American 3D computer-animated comedy-drama film produced by Pixar Animation Studios for Walt Disney Pictures.  It is the third installment in Pixar's "Toy Story" series, and the sequel to 1999's "Toy Story 2".  It was directed by Lee Unkrich, the editor of the first two films and the co-director of "Toy Story 2", written by Michael Arndt, while Unkrich wrote the story along with John Lasseter and Andrew Stanton, respectively director and co-writer of the first two films.  The plot focuses on the toys Woody, Buzz Lightyear, and their friends dealing with an uncertain future as their owner, Andy, prepares to leave for college.  The film features an ensemble voice cast with Tom Hanks, Tim Allen, Joan Cusack, Don Rickles, Wallace Shawn, John Ratzenberger, Estelle Harris, Jodi Benson, and John Morris reprising their roles from the previous films, along with Blake Clark as the voice of Slinky Dog (because Jim Varney died ten years before the release of the film) and Ned Beatty, Michael Keaton, Whoopi Goldberg, Timothy Dalton, Kristen Schaal, Bonnie Hunt, and Jeff Garlin voicing the new characters introduced in this film.

John Ratzenberger: John Dezso Ratzenberger (born April 6, 1947) is an American actor, voice actor, and entrepreneur.  He is best known as Cliff Clavin in "Cheers".  He is also known for his extensive vocal work in Pixar Animation Studios' films, notably Hamm in the "Toy Story" franchise and Mack in the "Cars" franchise.

List of Pixar film references: Beginning with "Red's Dream" and its references to previous Pixar short films, Pixar has included references in its films to other works produced by the studio.  These have included cameo appearances, references to characters, objects, and titles of works.  Additionally, such easter eggs or in-jokes can refer to Pixar staff, associates, or places or events from the company's past.  Lastly, some items, such as A113, Pizza Planet or actor John Ratzenberger have appeared in the majority of Pixar films, establishing a set of traditions that subsequent Pixar films try to include.

Cliff Clavin: Clifford C. "Cliff" Clavin, Jr. (born 1947 or 1949), is a fictional character on the American television show "Cheers" co-created (and played) by John Ratzenberger.  A postal worker, he is the bar's know-it-all and was a contestant on the game show "Jeopardy!" Cliff was not originally scripted in the series' pilot episode, "Give Me a Ring Sometime", but the producers decided to add a know-it-all character and Ratzenberger helped flesh it out.  The actor made guest appearances as Cliff on "St. Elsewhere", "Wings" and "Frasier".

Monsters University: Monsters University is a 2013 American 3D computer-animated comedy film produced by Pixar Animation Studios for Walt Disney Pictures.  It was directed by Dan Scanlon and produced by Kori Rae, with John Lasseter, Pete Docter, Andrew Stanton and Lee Unkrich as executive producers.  The music for the film was composed by Randy Newman, marking his seventh collaboration with Pixar.  It was the fourteenth feature film produced by Pixar, and is a prequel to 2001's "Monsters, Inc.", marking the first time Pixar has made a prequel film.  "Monsters University" tells the story of two monsters, Mike and Sulley, and their time studying at college, where they start off as rivals, but slowly become best friends.  John Goodman, Billy Crystal, Steve Buscemi, Bob Peterson, and John Ratzenberger reprise their roles as James P. Sullivan, Mike Wazowski, Randall Boggs, Roz, and the Abominable Snowman, respectively.  Bonnie Hunt, who played Ms. Flint in the first film, voices Mike's grade school teacher Ms. Karen Graves.

Made in America (TV program): John Ratzenberger's "Made in America" is an American documentary television series hosted by John Ratzenberger.  The series premiered January 6, 2004, on the Travel Channel.  Ratzenberger visits various American manufacturers, taking the show's viewers along on the tours and showing how various everyday items are made.  The show has visited a variety of factories, including Crayola, Airstream, Yankee Candle, Samuel Adams Brewery, Ruger, Delta Faucet Company, and Rodgers Instruments.

The Village Barbershop: The Village Barbershop is a 2008 independent film written and directed by Chris J. Ford, starring John Ratzenberger and Shelly Cole.  Ratzenberger plays Art Leroldi, a Reno barber forced to hire a new employee, Gloria MacIntyre, played by Cole, after the death of his longtime business partner.  Faced with losing his shop, Gloria helps Art get his life and business back on track with her feisty, determined attitude.

Toy Story (franchise): Toy Story is a computer animated film series and Disney media franchise that began with the original 1995 film, "Toy Story", produced by Pixar Animation Studios and released by Walt Disney Pictures.  The franchise is based on the anthropomorphic concept that all toys, unknown to humans, are secretly alive, and the films focus on a diverse group of toys that feature a classic cowboy, Sheriff Woody, and modern spaceman, Buzz Lightyear.  The group unexpectedly embark on adventures that challenge and change them.

Supporting paragraphs: John Ratzenberger Toy Story (franchise)
Answer: Toy Story