 This new ROM added several new features including support for the new Fastext system, which introduced the four coloured buttons subsequently found almost ubiquitously on European remote controls, including the "red button" which remains a feature of digital television broadcasting.The adapter itself was mains powered with its own power switch matching the one on the BBC microcomputer.Connection to the computer was via a ribbon cable and the only other connector on the adapter was a female 75ohm TV aerial (in) connector.