question: What television show was written by Alex Hirsch and was produced from June 15, 2012 to February 15, 2016
answer: Gravity Falls
context: Title: Gravity Falls
  Passage: Gravity Falls is an American animated television series produced by Disney Television Animation originally for Disney Channel (and then later for Disney XD) from June 15, 2012 to February 15, 2016.
  Title: J.J. &amp; Jeff
  Passage: J.J. & Jeff, known in Japan as Kato-chan Ken-chan (カトちゃんケンちゃん ) , is a side scrolling platform game for the TurboGrafx-16.  The Japanese version is loosely based on the then-popular comedy television show "Fun TV with Kato-chan and Ken-chan" which Vin Di Bona Productions used as its inspiration for the popular television show "America's Funniest Home Videos".  The game is best remembered for its off-beat characters and enemies, and toilet humor, including flatulence, urination and defecation in the Japanese release.  The game is often criticized for being too censored or sanitized when translated for America with most reviewers feeling that the Japanese version was superior in humor and gameplay.  On May 28, 2007, it was released on the Wii's Virtual Console in North America, and in Europe on June 15.
  Title: Dreamscaperers
  Passage: "Dreamscaperers" is the nineteenth episode of the first season in the animated series "Gravity Falls".  The episode is the first of the two-part season finale, the second being "Gideon Rises".  It was first broadcast on July 12, 2013, on the Disney Channel.  It was written by series creator Alex Hirsch, alongside Matt Chapman and Tim McKeon, and directed by Joe Pitt and John Aoshima.  It marks the first appearance of Bill Cipher.
  Title: TV Guide's 100 Greatest Episodes of All-Time
  Passage: 100 Greatest Episodes of All-Time (1997) and Top 100 Episodes of All Time (2009) are lists of the 100 best television show episodes in U.S. television history. " TV Guide" published both lists: the first, published in June 28, 1997, was produced in collaboration with Nick at Nite's TV Land.  A revised list was published in June 15, 2009.  The lists excluded game shows and variety shows, but included situation comedies and drama series.
citations: Gravity Falls Dreamscaperers