The HDCP function supports production Key encryption and is included on both HDMI and DVI outputs. This model has Teletext function, closed caption and V-chip. Teletext is generic name for a system of information broadcast as pages of text alongside the television signal for PAL Systems. The Closed caption and V-chip for TV (NTSC). The rating MPAA for movie and USA TV are available for selection. Closed Captions are captions that are hidden in the video signal. The V-chip is a standard for placing program rating information on a television program. So that parents can be choose to filter what program their children can watch.