Always welcome your very helpful comments, both general and specific. Our situation at L37 1PZ is that we have the original aerial at low height on a bungalow. We can receive all digital programmes except those on Arq B Mux and the reception check shows this location as clear, although there are some "blank" areas nearby on the reception map for Winter Hill. We accept that we may need to upgrade the aerial, and increase its height, and could do the installation ourselves, but do not know whether to get a high gain, wideband or group C/D. Can you help please.