by TiMiTech, a company formed by the Chinese Academy of Broadcasting Science. Announced in October 2006, it has been described as being similar to Europe's DVB-SH standard for digital video broadcast from both satellites and terrestrial 'gap fillers' to handheld devices. It specifies usage of the 2.6 GHz frequency band and occupies 25 MHz bandwidth within which it provides 25 video and 30 radio channels with some additional data channels. Multiple companies have chips that support CMMB standard - Innofidei who was the first with a solution March 28, 2007, Siano Mobile Silicon(with the SMS118x chip family, which support diversity and have superb performance) and more. Role in regulating film, television, and internet content The NRTA issues mandatory guidelines for media content. In 2011 and 2012 (when still SARFT) it limited the number of reality television programs and of historical dramas expressing particular disapproval of programs with a plot twist that involved time travel back to a Chinese historical era. This decree resulted in cancellation of a number of planned films with historical drama plots. It issued a directive on 30 March 2009 to highlight 31 categories of content prohibited online, including violence, pornography, content which may "incite ethnic discrimination or undermine social stability". Some industry observers believe that the move was designed to stop the spread of parodies or other comments on politically sensitive issues in the runup to the anniversary of the 1989 Tiananmen Square protests and massacre. It issued a directive named "SAPPRFT's Opinions On Strengthening The Programme Management of Satellite Television Channels" in 2011, aiming at over-turning the over-emphasis on purely entertainment programmes in the satellite television channels in China. Outstanding Domestic Animated Television Productions For every quarter, the SAPPRFT announces the Outstanding Domestic Animated Television Productions (), which is given to the works that "persist with correct value guidance" () and "possess relatively high artistic quality and production standards" (). The initial nominees are selected by the province-level administrative departments of broadcast and television, and the China Central Television (CCTV). Then, the SAPPRFT invites the relevant broadcasting organisations, experts and audience representatives to review the nominees and make the finalist. Once the list is finalised, the television broadcasters in Mainland China, especially nationwide generalist channels and animation and children's channels , and children's channels on terrestrial television, are recommended to give priority when broadcasting such series. See also List of banned films in China Censorship