Probably not digitally as it's more than likely the recorded programs will be encrypted. Only way, if the IQ box has a composite video/audio outlet (red/white/yellow RCA connectors), would be to use that, connected to a USB video capture dongle plugged into a PC or laptop with your portable hard drive set as the destination drive for the resulting video. Same system used for recording from VHS/Beta video recorders and DVD players onto a PC.
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Hino Rainbow motorhome conversion towing a Daihatsu Terios