China Digital TV Holding Co., Ltd. (CDTV Holding) is a provider of conditional access (CA) systems to the digital television market in the People鈥檚 Republic of China. The Company鈥檚 CA systems, which consist of smart cards, head-end software for television network operators and terminal-end software for set-top box manufacturers, enable digital television network operators in People鈥檚 Republic of China to control the distribution of content and value-added services to their subscribers and block unauthorized access to their networks. As of December 31, 2009, the Company had installed CA systems at 244 digital television network operators in 27 of the 32 provinces, autonomous regions and centrally administered municipalities in the People鈥檚 Republic of China. In addition, the Company licenses its set-top box design to set-top box manufacturers and sell digital television application software, such as electronic program guides to digital television network operators.