Question: Blue's Clues is an American live-action/animated children's television series that premiered on which TV network, one of the producers is Traci Paige Johnson, an American animator, television producer, and voice actress?
Context: Blue's Clues is an American live-action/animated children's television series that premiered on Nickelodeon on Sunday, September 8, 1996.  Producers Angela Santomero, Todd Kessler, and Traci Paige Johnson combined concepts from child development and early-childhood education with innovative animation and production techniques that helped their viewers learn.  It was hosted originally by Steve Burns, who left in 2002 and was replaced by Donovan Patton.  The show follows an animated blue-spotted dog named Blue as she leaves a treasure hunt for the host and the viewers.  "Blue's Clues" became the highest-rated show for preschoolers on American commercial television and was critical to Nickelodeon's growth.  It has been called "one of the most successful, critically acclaimed, and ground-breaking preschool television series of all time."  A spin-off called "Blue's Room" premiered in 2004. Alexander Robert "Alex" Hirsch (born June 18, 1985) is an American animator, storyboard artist, voice actor, and television producer.  He is best known as the creator of the Disney XD animated television series "Gravity Falls", where he voices some of the characters.  He has previously worked as a storyboard artist on the Cartoon Network series "The Marvelous Misadventures of Flapjack" and the Disney Channel series "Fish Hooks". Fishtronaut (Portuguese: "Peixonauta" ) is a Brazilian animated television series created by Celia Catunda and Kiko Mistrorigo and produced by TV PinGuim, in association with Discovery Kids (Latin America).  The series tells the story of Fishtronaut, a fish in a spacesuit, similar to reverse scuba gear, which allows him to fly and breathe out of water.  He is a secret agent who, along with his friends Marina and Zeek, unravel the mysteries occurring in the Smiling Trees Park.  They solve the mysteries with the help of a P.O.P. (Primary Objective Pod), a magical multicolored ball containing clues vital to the mission.  Viewers are invited to dance along with the heroes to a tune, so that the P.O.P. will open and release the clues inside.  The series is aimed at children ages 3–7 and debuted successfully on Discovery Kids in Latin America on April 20, 2009.  In the international market, the series is marketed by the names of "Peztronauta" (Spanish) or "Fishtronaut" (English).  After success on TV, "Peixonauta" was produced as a play called "Peixonauta to TV Theatre," which premiered on January 9, 2011 in Rio de Janeiro.  On November 9, 2012, a movie titled "Peixonauta – Agente Secreto da O.S.T.R.A." (in English: "Fishtronaut - Secret Agent of O.Y.S.T.E.R.") was released.  As of March 30, 2015, the series also airs on the Qubo network, owned by Ion Media Networks. Out of Jimmy's Head (abbreviated as OOJH), is an American live-action/animated television series.  It was advertised as the first Cartoon Network series in this genre, even though "Big Bag" was what took credit, while also including some animated segments.  Based on the first live-action/animated original channel movie "Re-Animated", that was aired on December 8, 2006, it is produced by Cartoon Network Studios and Brookwell McNamara Entertainment (the latter known for shows such as "Even Stevens" and "That's So Raven").  It was created by Tim McKeon and Adam Pava, who were originally the writers for "Foster's Home for Imaginary Friends" and "The Life and Times of Juniper Lee", but also the creators of "Weighty Decisions" short on Cartoon Network's "Sunday Pants" anthology series. Riders in the Sky was an American live-action/animated children's television series starring western/comedy band Riders in the Sky.  It aired on CBS in 1991. Josquin Des Pres (Born Josquin Turenne Des Pres) is a 20th-century French born American composer, bassist, author, producer, songwriter and most known for his contributions to music media books for Hal Leonard Corporation and Mel Bay instructional music books.  Josquin has written a vast library of compositions and music techniques on bass, music studies and various collections which are used by music teachers, private studies and in schools both nationally and internationally as a standard tool in the music industry.  Des Pres is also a collaborative writer with English lyricist, poet, and singer Bernie Taupin on several compositions.  Josquin Des Pres also writes musical scores and music trailers for more than 40 major TV networks and television shows including The Ellen DeGeneres Show, The Bachelor (U.S. TV series), American Idol, The Tyra Banks Show, George Lopez (TV series), Anderson Cooper, TMZ on TV, Extra (TV program), American Chopper, Pawn Stars, Deadliest Catch, CNN, NBC, HGTV, TBS (U.S. TV channel), Bravo (U.S. TV network), Food Network, Animal Planet, Discovery Channel, History (U.S. TV channel), Travel Channel, CBS Television Stations, Viacom, VH1, ABC, BET, KPBS (TV), TLC (TV network), and The CW Network.  His works are also known on MTV Networks Television Series Catfish, The Seven, When I Was Seventeen, MTV Cribs, Pimp My Ride, Teen Mom, True Life and 10 on Top. Jeff "Swampy" Marsh (born December 9, 1960) is an American animator, writer, director, producer, and voice actor associated with several animated television series, most notably as the co-creator, executive producer, and voice of Major Monogram of Disney's animated series "Phineas and Ferb".  Marsh was born in Santa Monica, California, where he grew up with a heavily blended family dynamic.  Marsh has been and continues to be a driving force behind several animation projects, working for over six seasons on the animated television series "The Simpsons".  Marsh continued to work on other animated television series, including "King of the Hill" and "Rocko's Modern Life," before moving to England in 1996. Traci Paige Johnson is an American animator, television producer, and voice actress, most known for creating the Nick Jr. preschool television series, "Blue's Clues" (1996–2004) and its spin-off, "Blue's Room" (2004–2007). Blue's Room is an American children's live-action/animated puppet television series originally broadcast on Nickelodeon as part of the Nick Jr. block.  It is a spin-off series of the popular "Blue's Clues" series, and was created by Traci Paige Johnson and Angela C. Santomero.  The show started as short segments on "Blue's Clues" episodes in Season 6. Nina's World is a Canadian-American animated children's television series.  In relation to the preceding Sprout TV network block "The Good Night Show" it has been interpreted as a prequel.  It focuses on Nina, a 6-year-old Latina.  It was originally premiered on September 2015 on the Sprout network.  There are at least 13 episodes.  This incarnation of Nina was introduced by Cat Greenleaf in August 2015.
Answer: Nickelodeon