aerial in to digibox - out to DVD (assuming DVD has a digital tuner). Aerial to TV is a waste of time as no digital tuner in it.
SCART digibox out/vcr to DVD
DVD can then record from the digibox.
Best to get a switched SCART box. This sort of thing:
http://www.maplin.co.uk/p/nikkai-connect-scart-to-2-scart-box-with-switch-l09bb
SCART from digibox out/tv to switch
SCART from DVD out/tv to switch
SCART from switch to TV SCART socket.
You then need to watch the TV through the SCART input and use the switch to choose whether to see the digibox or the DVD player.