O
oompah
I'm in S molton 10 miles to the east of Barnstaple i can get freeview with no problem and its from huntshaw cross.My aerial is twenty years old but its got a booster,so you ought to pick up freeview ok.Where abouts are you in Devon? I maybe able to offer some advice.
80m is far too far without a masthead amp. You may even need to fit an amp half way too!
It can get a little bit tricky - you can end up amplifying too much......It can be a little trial and error without test kit and experience.
I'm in North Devon, about 10 miles south of Barnstaple.