Question: Jerry and the Lion was a short based on which animated series?
Context: The New Batman/Superman Adventures is a name given to a package series that combined "" with "" and "The New Batman Adventures" produced by Warner Bros.  Animation.  It aired from 1997–2000 on Kids' WB.  Each half-hour episode in the hour-and-one-half block featured either a single repeat from the original "Superman: The Animated Series" run, the original "Batman: The Animated Series" run, or a brand new story featuring Batman made specifically for this series, drawn in an animation style to match "Superman: The Animated Series".  These new stories focus more on Batman's supporting cast and introduced new characters such as Tim Drake.  The two animated universes were united in the "Superman" episode "World's Finest", which tells the story of Batman and Superman's first meeting.  The new Batman episodes that began airing in the Fall 1997 season were later released as a DVD box set of "Batman: The Animated Series" as Volume 4.  New Superman episodes that later aired in the Fall 1998 season and onward are now considered to be the third season of "Superman: The Animated Series". Jerry and the Lion is a 1950 one-reel animated cartoon and is the 50th "Tom and Jerry" short.  It was produced in Technicolor and released to theatres on April 8, 1950 by Metro-Goldwyn Mayer.  The cartoon was animated by Irven Spence, Ed Barge, Kenneth Muse, and Ray Patterson.  It was directed by William Hanna and Joseph Barbera, and produced by Fred Quimby.  Scott Bradley arranged the music, Robert Gentle did the backgrounds, and Frank Graham provided the (uncredited) voice of the lion that befriends Jerry in the cartoon. Teeny-Tiny And The Witch-Woman is a story written by Barbara K. Walker and illustrated by Michael Foreman based on an old Turkish folk tale.  The story was first published in 1975 by Pantheon Books and an animated short based on the story was produced by Weston Woods in 1980. Mickey's Mellerdrammer is a 1933 American animated Pre-Code short film produced by Walt Disney Productions and released by United Artists.  The title is a corruption of "melodrama", thought to harken back to the earliest minstrel shows, as a film short based on Harriet Beecher Stowe's anti-slavery novel "Uncle Tom's Cabin" and stars Mickey Mouse and his friends who stage their own production of the novel. Father Christmas is a 1991 animated short based on two books written by Raymond Briggs: "Father Christmas" and "Father Christmas Goes on Holiday", published in 1973 and 1975 respectively.  It was first aired in Britain in 1991 on Channel 4, nine years after "The Snowman", another animated Briggs adaptation produced for the same channel.  This movie was dedicated to the late actor John McGuire.  The film was first released on DVD in 2000, bundled with "The Snowman".  It was later released separately. Tom and Jerry is an American animated series of short films created in 1940, by William Hanna and Joseph Barbera.  It centers on a rivalry between its two title characters, Tom and Jerry, and many recurring characters, based around slapstick comedy. Peter and the Wolf is an 1946 animated short based on the 1936 musical composition/fairy tale by Sergei Prokofiev, produced by Walt Disney and narrated by Sterling Holloway.  It was originally released theatrically as a segment in "Make Mine Music".  It was re-issued the following year accompanying a re-issue of "Fantasia" (as a short subject before the film), then released separately on home video in the 1990s. The Family That Dwelt Apart is a 1973 Canadian animated short based on the short story of the same name by E.B. White, about the misadventures of a family of seven who live in happy isolation on a small island in Barnetuck Bay, until word gets out that they are in distress.  The film is directed by Yvon Mallette, narrated by E.B. White, and produced by Wolf Koenig for the National Film Board of Canada.  "The Family That Dwelt Apart" received the Canadian Film Award, now known as the Genie Award, for best animation.  It was also nominated for an Academy Award for Best Animated Short Film at the 47th Academy Awards, losing to "Closed Mondays". The House That Jack Built is a 1967 National Film Board of Canada animated short based on the nursery rhyme "This Is the House That Jack Built."  Directed by Ron Tunis, written by and produced by Wolf Koenig, the eight-minute film was nominated for an Academy Award for Best Animated Short Film, losing to "Winnie the Pooh and the Blustery Day" at the 41st Academy Awards.  Jack is desperate to escape his nine-to-five life.  Mirroring the fairy tale, he trades his car for a handful of beans. The Vanishing Duck is a 1958 one reel animated "Tom and Jerry" short, directed and produced by William Hanna and Joseph Barbera with music by Scott Bradley.  The cartoon was animated by Lewis Marshall, Kenneth Muse, Carlo Vinci and James Escalante, with backgrounds by Robert Gentle and layouts by Richard Bickenbach.  Red Coffey, June Foray and George O'Hanlon provided the voices for this film.  It was released on May 2, 1958 by Metro-Goldwyn-Mayer and marks the final appearance of Quacker, who appeared in seven previous "Tom and Jerry" shorts.  As such, "The Vanishing Duck" is the antepenultimate "Tom and Jerry" short of the Hanna and Barbera era.  O'Hanlon would go on to star as the voice of George Jetson on the ABC-TV animated series, "The Jetsons," also produced by Hanna-Barbera four years later.  The cartoon has a similar premise to an earlier film, The Invisible Mouse, released in 1947.
Answer: Tom and Jerry