[G7000] Presumably if it has a UHF output it also has an internal modulator. Can't you just tap off composite video from the input to that? What chips _other than the 8048_ are in this device? Is the video side custom or does it use one of the many Philips video chipsets? (Philips Prestel terminals tend to be stuffed with their Teletext IC's, for example...) -tony