Hadmut, There has been an ongoing debate about this, for several years. The way that it is supposed to work is that the TV broadcasters would include some kind of rating information in the vertical interval between frames, and the TV's that are sold after a certain date would interpret these rating signals to darken the screen during shots, or more likely, programs that are deemed inappropriate to the viewer. The idea would be that parents could program their tv's to permit some range of sex and/or violence, and thus could protect their children somewhat. The chip that interprets the content does it solely based on the rating information. This is the so-called "v-chip" (v for violence, I think, not for video) that you see in the press. I think that a more reasonable approach would be to sell a box that sits between the video signal source and the TV, or that is within the TV, that is connected to some private rating service. I think that any kind of mandated rating would be unlikely to meet the qualifications of most people. Besides, what I would really like to filter out, what I find to be incredibly violent to the minds of children, is commercial advertising. Private rating services could take care of these, easily, as well. The idea of boxes outside the TV is usually casually shot down as unworkable; that kids, with their infinite time, patience, cleverness, and guile, will find a way to bypass the box. I'd say that it's worth a try. And, if it will blank commercials (and pause your VCR during them, say) I think it will have tremendous revenues to enable research into a secure solution. One such secure solution would be that you would take your TV into a shop, and have the antenna connection modified, so that any tampering would be detected. Or have it done as a house call, whatever. thad -- Thaddeus Beier email: thad@hammerhead.com Technology Development vox: 408) 286-3376 Hammerhead Productions fax: 408) 292-8624