Being pedantic, there is no such thing as a "digital" aerial. An aerial will pick up whatever signals it can "see", it does'nt know the modulation system the signal is carrying. It just receives it & sends it down the cable. However, for convenience the makers often advertise wideband ones thesedays as "digital"; the marketing departments also see this as a good ploy, as we have all been conditioned to think the anything digital is better than analogue!