Question: Betty Paraskevas is known for her work on which Canadian animated children's televesion series?

Context paragraphs:
Walter and Tandoori: Walter and Tandoori, also known as Walter or Walter's World, is a Canadian animated children's series produced by Image Entertainment Corporation.  The series centres on Walter, an inventor and fix-it specialist, and his friend Tandoori, a hyperactive chicken, who live together in the village of Trois-Montagnes (in the French version) or Hart's Landing (in the English version), and embark on various adventures designed to teach children about the environment and ecology.

Betty Paraskevas: Rita E. "Betty" Paraskevas (April 8, 1929 – April 7, 2010) was a New York writer and lyricist best known for her work on "Maggie and the Ferocious Beast".

Maggie and the Ferocious Beast: Maggie and the Ferocious Beast is a Canadian animated children's television series created by Michael and Betty Paraskevas.  The program was based on the 1996 book "The Ferocious Beast with the Polka-Dot Hide" and its sequels, all of which were also written by the Paraskevases.

Razzberry Jazzberry Jam: Razzberry Jazzberry Jam is a Canadian animated children's television show about music.  All of the characters are anthropomorphic musical instruments.  In each episode a special guest arrives at "The House of Jam" and the band learn about that guest (instrument) and a new song that features that instrument.  Each episode also has two live action components wherein children learn about musical concepts with real musicians and real instruments.  The animation is done with Adobe Flash.

Chirp (TV series): Chirp is a Canadian animated children's television series created by J.J. Johnson.  The series is based on the Canadian children's magazine "Chirp".  It was previewed on Kids' CBC on March 6, 2015, and premiered on April 20.

Henry's World: Henry's World is a Canadian animated children's series produced for Canada's Family Channel by Cuppa Coffee Animation, Alliance Atlantis Communications, but TV Loonland AG only produced season 1.  It was first aired from 2002 to 2007, with reruns still currently Nick Jr. in Germany.  The series follows Henry Wiggins, a boy who has an extraordinary ability to make his wishes come true when eating his mother's mashed carrots.  This was the first stop-motion animated series to be entirely produced in Canada.

Marvin the Tap-Dancing Horse: Marvin the Tap-Dancing Horse is a Canadian/Korean animated television show produced by Nelvana that first aired on Teletoon on March 5, 2000.  It tells the stories of a young horse named Marvin who is part of a carnival.  Among the executive producers are Michael Paraskevas and Betty Paraskevas, creators of Maggie and the Ferocious Beast.  who also created the book that the show is based on.  The show first aired on the Treehouse block before moving to just before Tiny Pop.  In the United States, the series also aired on PBS Kids as part of the PBS Kids Bookworm Bunch from 2000 to 2002.  In 2007, reruns of the show began airing on Qubo Channel in the US.

List of Maggie and the Ferocious Beast episodes: "Maggie and the Ferocious Beast" is a Canadian animated children's television series created by Michael and Betty Paraskevas.  The program was based on the 1996 book "The Ferocious Beast with the Polka-Dot Hide" and its sequels.  The series originally aired on Teletoon in Canada.

Doki (TV series): Doki (also known as Doki Adventures) is a Canadian animated children's television series produced by Portfolio Entertainment for Discovery Kids.  The series debuted on Discovery Kids in Latin America on April 15, 2013.

Peg + Cat: Peg + Cat is an American/Canadian animated children's television series based on the children's book "The Chicken Problem", which was published in 2012.  The series is created by Billy Aronson and Jennifer Oxley and produced by The Fred Rogers Company and 9 Story Entertainment.  It debuted on most PBS stations on October 7, 2013, as part of the revamped PBS Kids brand.

Supporting paragraphs: Betty Paraskevas Maggie and the Ferocious Beast
Answer: Maggie and the Ferocious Beast