acquired by Debmar-Mercury and Tribune Entertainment in 2003 and 2004 respectively. Episodes further edited for content began running in syndication on September 19, 2005, and are aired in the United States with the TV-14 rating. 20th Television replaced Tribune as co-distributor in early 2008. The series is currently aired in syndication in 90 percent of the television markets across the U.S. and Canada, where it generates an estimated US$25 million a year in advertising revenue. In 2019, CBS Television Distribution (the syndication arm of ViacomCBS, now known as Paramount Global), took over the full distribution rights following the acquisition of 21st Century Fox (parent of 20th Television) by The Walt Disney Company (who had employed Debmar-Mercury founder Mort Marcus as the head of their syndication division), distributing the show in syndication. Home media Complete seasons of South Park have been regularly released in their entirety on DVD since 2002, with season twenty-three being the most recently released. Several other themed DVD compilations have been released by Rhino Entertainment and Comedy Central, while the three-episode Imaginationland story arc was reissued straight-to-DVD as a full-length feature in 2008. Blu-ray releases started in 2008 with the release of season twelve. Subsequent seasons have been released in this format alongside the longer-running DVD releases. The first eleven seasons were released on Blu-ray for the first time in December 2017. Streaming In March 2008, Comedy Central made every episode of South Park available for free full-length on-demand legal streaming on the official South Park Studios website. From March 2008 until December 2013 new episodes were added to the site the day following their debut, and an uncensored version was posted the following day. The episode stayed up for the remainder of the week, then taken down, and added to the site three weeks later. Within a week, the site served more than a million streams of full episodes, and the number grew to 55 million by October 2008. Legal issues prevent the U.S. content from being accessible outside the U.S., so local servers have been set up in other countries. In September 2009, a South Park Studios website with streaming episodes was launched in the UK and Ireland. In Canada, episodes were available for streaming from The Comedy Network's website, though due to digital rights restrictions, they are no longer available. In July 2014 it was announced that Hulu had signed a three-year deal purchasing