Some feedback:
I borrowed an old 4bay bow-tie of unkown make and model , stuck it onto the old satellite dish J mount and pointed it using landmarks - I'm picking up about 25 channels
I need to do some fine tuning as WNEU and WLVI are not strong enough, and at night I can get the RI stations. Strangely I am getting WZMY which is 110 degrees off to the east of my pointing, and a strong signal, 80, but no image from WTIC which is ~90 miles away and 90 degrees to the west.
A CM4221HD with some fine tuning will, I expect, resolve the weak channels.
Thanks All.