> There is interesting system: they publish on sunday's newspaper all the shows > with some numbers. If u type this number, the VCR records the show! > Dont now about comercials , though. But maybe the VCR can decode the number > sent in vertical retrace(timestamp?) . It isnt encoded into the tv at all. The numbers are encrypted copies of the (time, length, channel) tuple. They crypt them so that people have to pay to buy encoders for the tv data!
