Network was originally twinned with TNT and ran from 5am until 7pm, with TNT taking over from 7pm to 5am. Sunday afternoons saw "Super Chunk", which showed back to back episodes of one show for two hours between 1pm and 3pm. Another feature was "The Longest Day", in which Cartoon Network ran for an extra four hours until 11pm in June 1994, every year beginning in 1994. This slot was dedicated to full-length cartoon movies. The first theme was the Checkerboard theme, which showed graphics from its US counterpart and lasted until 1999. The Checkerboard branding package was developed by Hatmaker Studios, now merged and part of its sister company - Corey, McPherson and Nash. Also unlike Nickelodeon, which was part of Sky Multichannels, Cartoon Network was free-to-air across Europe. Introduction of 24-hour service In August 1996, Cartoon Network began running for an extra two hours until 9pm, and in December 1996, along with TNT, it became a 24-hour channel. The full time version was only available on the Astra 1G satellite as the timesharing version of the channel continued to appear on analogue platforms, including on all providers in the UK. In December 1998, Cartoon Network launched as part of the Sky Digital satellite platform on the Astra 2A satellite. Also, in February 1997, Dutch cable provider A2000/KTA added the 24-hour Cartoon Network and TNT channels to its programming lineup. From 15 November 1998, Cartoon Network was part of ITV Digital's channel package, airing 24 hours a day until the service collapsed on 1 May 2002. Separation from Pan-European version In October 1999, Cartoon Network officially split from the pan-European feed, this was when the shared transponder analogue feed on Astra 1C became scrambled with VideoCrypt and when the short-lived analogue UK and Ireland only version of TNT launched. Prior to this date, the European version of Cartoon Network moved to Sirius II for serve Central Europe in August 1999 and the French and Spanish version launched at the same time the same month, leaving the ex pan-European version on Astra 1C acting as a de facto free to air secondary/transitional European feed for countries preparing to switchover to their own newly launched local versions of Cartoon Network up until encryption in October 1999. TNT changed its programming from classic movies to general entertainment as the movies were moved to TCM, TNT UK ceased to exist in July 2000