To the best of my knowledge, no VHS recorders were ever manufactured with digital tuners inside them. So the ability to make off-air recordings on a VHS machine was lost as soon as the digital switchover occurred. (You can still replay recordings made before that date, as well as commercial VHS tapes, but you can't make off-air recordings).
So there would seem to be absolutely no point in having the aerial feed into the VHS recorder; it's not doing anything! Plug it directly into your telly (or your DVD recorder).
If you need further advice, please tell us how many Scart sockets your TV has (and also whether your TV and DVD recorder both have HDMI sockets).