A digital aerial is more expensive than an analogue one because the
public perceives it as such... otherwise their much the same thing..

A bit of marketing bollokx for the aerial rigging trade;=-!!

"Digital" is just code for wideband, which is (a) rarely required for
analogue transmissions that are designed to be in in-band (except maybe
Channel 5) and (b) requires considerable redesign (specifically of Yagi
arrays) to achieve satisfactory results.

Christian.