Question: Transformers: Robots in Disguise is an American animated television series for children produced by Hasbro Studios and Darby Pop Productions, in the United States, the series premiered on Cartoon Network, an American basic cable and satellite television channel, on which date?

Context articles: List of Transformers: Animated characters
Cartoon Network (Japan)
USA Network
Discovery Channel
Food Network
Cartoon Network
History of CNN (1980–2003)
List of Transformers television series
Transformers: Robots in Disguise (2015 TV series)
CNN

"" is an American animated children's television series produced by Cartoon Network Studios.
 It is based on the Transformers toy and entertainment franchise created by Hasbro, about a race of giant, sentient robots that come from the fictional planet Cybertron and are able to change their appearance into cars, planes and other machinery.
 Transformers: Animated debuted on Cartoon Network on December 26, 2007, running for three seasons and with the final episode airing on May 23, 2009.
 Like most pieces of Transformers fiction, Transformers: Animated focuses on the conflict between two warring factions of Transformer robots, the heroic Autobots and the evil Decepticons, who bring their conflict to Earth.
 The following is a list of characters, Autobot, Decepticon and human, who appear in the series.
Cartoon Network (Japanese: カートゥーン ネットワーク , Hepburn: Kātūn Nettowāku ) is a Japanese cable and satellite television channel that mostly airs children's animated television series.
 As a Japanese version of the eponymous television channel in the United States, Cartoon Network broadcasts original series from its U.S. counterpart, as well as several Japanese animated media and other non-Japanese programs.
 An amount of non-Japanese programs are also available in English via secondary audio feed.
 It is one of few versions of Cartoon Network outside U.S. that broadcasts its programs in High Definition.
USA Network (commonly referred to as simply USA) is an American basic cable and satellite television channel that is owned by the NBCUniversal Cable Entertainment Group division of NBCUniversal, itself a subsidiary of Comcast.
 Once a minor player in basic cable, the network has steadily gained popularity due to its original programming; USA also broadcasts syndicated reruns of current and former "network television" (i.e., broadcast) series and theatrically-released feature films, as well as limited sports programming.
Discovery Channel (formerly The Discovery Channel from 1985 to 1995, and often referred to as simply Discovery) is an American basic cable and satellite television channel (which is also delivered via IPTV, terrestrial television and internet television in other parts of the world) that is the flagship television property of Discovery Communications, a publicly traded company run by CEO David Zaslav.
 s of 2012 , Discovery Channel is the third most widely distributed cable channel in the United States, behind TBS and The Weather Channel; it is available in 409 million households worldwide, through its U.S. flagship channel and its various owned or licensed television channels internationally.
Food Network is an American basic cable and satellite television channel that is owned by Television Food Network, G.P., a joint venture between Scripps Networks Interactive (which owns 70% of the network) and the Tribune (FN) Cable Ventures Inc. (which owns the remaining 30%).
 Despite this ownership structure, the channel is managed as a division of Scripps Networks Interactive.
 The channel airs both specials and regular episodic programs about food and cooking.
Cartoon Network is an American basic cable and satellite television channel that is owned by The Cartoon Network, Inc., a subsidiary of Turner Broadcasting System, itself being a subsidiary of Time Warner.
 It was founded by Betty Cohen and launched on October 1, 1992.
Cable News Network (CNN), an American basic cable and satellite television channel that is owned by the Turner Broadcasting System division of Time Warner, was founded in 1980 by Ted Turner and 25 other original members, who invested $20 million into the network.
 Upon its launch, CNN became the first channel to provide 24-hour television news coverage, and was the first all-news television network in the United States.
 This article discusses the history of CNN, beginning with the June 1980 launch of the channel.
Launched in 1984, Hasbro's Transformers toyline was promoted through both a comic book by Marvel Comics and an animated series produced by Sunbow Productions and Marvel Productions.
 Although the comic outlived the animated series by a number of years, the animated series is more widely recognised.
 With the original show's conclusion in 1987, original series exclusive to Japan were created which ran until 1990, and the franchise was later re-imagined with the fully CGI "Beast Wars" in the late 1990s.
 The 21st century saw a total reboot of the Transformers universe (first being Takara's produced "Car Robots", imported and called for Western release as ""), as Hasbro collaborated with Japanese Transformers producers Takara to create a new storyline with "" and its sequels, produced in Japan and then dubbed for English-speaking audience.
 In 2008, "Transformers Animated" saw Hasbro take control of the franchise once more through collaboration with Cartoon Network, bringing writing duties back to America, with animation being handled by Japanese studios.
 Hasbro also reacquired the distribution rights to the original series from Sunbow finally giving them the complete rights to the series based on their Generation 1 toy-line.
Transformers: Robots in Disguise is an American animated television series for children produced by Hasbro Studios and Darby Pop Productions in the United States, and animated by Polygon Pictures in Japan.
 It is a spinoff to "", albeit with a lighthearted tone than its predecessor.
 Roberto Orci and Alex Kurtzman (the executive producers of "Prime") did not return to the new series.
 In the United States, the series premiered on Cartoon Network on March 14, 2015.
Cable News Network (CNN) is an American basic cable and satellite television news channel owned by the Turner Broadcasting System, a division of Time Warner.
 CNN was founded in 1980 by American media proprietor Ted Turner as a 24-hour cable news channel.
 Upon its launch, CNN was the first television channel to provide 24-hour news coverage, and was the first all-news television channel in the United States.