An apparatus such as a television signal receiver controls a digital recording device via a digital data bus to enable sub-channel recording and playback. According to an exemplary embodiment, the apparatus includes a processor that is operative to process signals representing a plurality of sub-channels to generate digital data for a first one of the sub-channels. The digital data includes program data and identification data for the first sub-channel. An input/output terminal is operative to provide the digital data to a digital recording device via a digital data bus.