Test, Regular Show, Steven Universe, Teen Titans Go!, and Uncle Grandpa. Only one of these shows would air new episodes in this block, passing the baton to a different show monthly. Eventually, both of these blocks were discontinued, and Cartoon Network was completely devoid of programming blocks for some time. However, in March 2018, a brand new Friday night premiere block launched, under the simple name "New Fridays". The block aired on Friday nights from 4pm to 9pm, and it was based upon the United States feed's "NEW NEW NEW NEW" block, carrying the same neon light branding from its international counterpart. Despite only lasting around four months, the block had a large variety of shows rotating in and out of premiere slots, including Adventure Time, The Amazing World of Gumball, Ben 10, Clarence, Cloudy with a Chance of Meatballs, Mighty Magiswords, Ninjago: Masters of Spinjitzu, OK K.O.! Let's Be Heroes, The Powerpuff Girls, Regular Show, Steven Universe, Supernoobs, Teen Titans Go!, We Bare Bears, Uncle Grandpa, and Unikitty!. The Canadian import Wishfart also had its premiere and new episodes restricted to the block. In July 2018, the block was discontinued unexpectedly. Cartoonito On 1 March 2022, a Cartoonito block was launched, airing on weekdays from 9am to 11am (previously 9am to 10am). Unlike the channel's other programming blocks, it does not air during the school holidays. Sister networks Boomerang In May 2000, Boomerang was launched by Cartoon Network in the UK and Ireland, and most "classic" cartoons were moved from Cartoon Network to Boomerang, which initially broadcast from 6am to 12am. In October 2001, Boomerang became a 24-hour channel and the remaining "classic" cartoons like The Smurfs, also moved to Boomerang. Cartoonito In May 2007, Cartoonito was launched as a pre-school channel replacing Cartoon Network Too. Cartoonito aired from 4am to 9pm daily. In January 2018, Cartoonito officially began airing 24 hours a day. Defunct sister networks CNX CNX was a channel operated by Turner Broadcasting System Europe in the UK and Ireland between 2002 and 2003. It was aimed at a male audience, with daytime programming aimed at older children and teenagers, and evening programming aimed at older teenagers and young adults. CNX was carried in the 'Entertainment' section of the Sky programme guide, and was also available on cable Toonami Toonami launched in September 2003 showing action programming. Toonami had originally replaced CNX, which launched in October