few stations discarded teletext subtitles and are now using the subtitles feature of the Digital Video Broadcasting (DVB) system. Reception Satellite Digital satellite television has been officially available in Germany since 1996. Prior to May 2012, most of the 30+ TV stations broadcast their satellite signal using both analogue and digital (DVB-S); however, all analogue satellite broadcasts ceased on 30 April 2012. There is currently a single pay TV satellite operator in Germany - Sky Deutschland. Prior to being known as Sky, the service was named Premiere; it (along with its former owner Leo Kirch) got into serious financial trouble due to its early and proprietary usage of encryption (Betacrypt, D-box). Subsequently, Premiere was bought by News Corporation and renamed Sky, in keeping with their satellite services elsewhere in Europe (Sky (UK and Ireland) and Sky Italia). HDTV via satellite In late 2004 German channel group ProSieben showed a BBC documentary and a self-produced TV movie in 1080i via MPEG-2 DVB-S, followed by the Hollywood films Spider-Man and Men in Black II in March 2005. These were intended to be a test for future commercial HD services. Regular free to air broadcast of the HD versions of ProSieben and Sat.1 began on 26 October 2005. Unlike the test broadcasts, DVB-S2 and MPEG-4 AVC were used. Both ProSieben HD and Sat.1 HD ceased their unencrypted broadcasts in 2008; encrypted HD broadcasting of both channels resumed under the HD+ brand (which also included other commercial channels; see below) in January 2010. Premiere, after several delays, started broadcasting three HD channels — one each dedicated to films, sports and documentaries — in November 2005, although there were virtually no suitable, certified receivers available on the market. The content was also sparse and thus often repeated. Sky (formerly Premiere) reuses its proprietary digital rights management system embedded into its content scrambling system (Nagravision) from SD broadcasts to block analogue output of the movie channel from the receiving set-top box altogether, only allowing HDCP-secured transmissions; the other channels are less restricted. On 1 November 2009 the premium HD+ service launched with two channels, RTL HD and Vox HD, with Sat.1 HD, ProSieben HD and Kabel eins HD joining the service in January 2010. DSF HD (now called Sport1 HD) began test broadcasts in August 2010 and launched fully on HD+ on 1 November 2010, followed by Sixx HD and RTL2 HD on 1 December 2010.