Depends on which Sky+ box - my sensor is just to the right of the row of silver buttons - it is a Pace - the best sort!
You do need to change the setting on the STB-C though. Turn the TV on to TV, press Menu then scroll down to set up. Press Go and then gto to connections. That will bring up what is attached and one will be STB-C decoder, Highlight that and press Go and a long list of STBs is shown. Highlight the Pace Sky+ and press Go. If Sky+ does not appear, you will need a software upgrade.