Pace Sky plus User Manual page 51

Some video recorders, when connected via a SCART cable to your
Sky+ set top box, will start recording automatically when you start
copying programmes. For more information on whether this feature
is supported, see the user guide that came with your video recorder.
It is advisable to start copying during a period when you can leave your
Sky+ set top box and video recorder unattended, as you will be unable
to watch other programmes via your Sky+ set top box while copying
takes place. If the process is interrupted, by pressing any of your Sky+
remote control keys, the copying process will end.
Sky+ User's Guide 47