Sorry but I think the only way to go is a small satellite set up.
It ill work, with a bit of tweaking, pretty much wherever you are; I can't see a fixed aerial doing the job anymore- they were fine when we all watched carp tv's and thought we were lucky to get a picture, but we have become spoiled these days
Once you have got the hang of aligning a dish it's an easy job and you have a far better chance of getting a decent signal - most "nice places" to camp do not have god coverage on a terestrial level - I lived in the North Yorks Moors National Park and the only way I could get decent radio was via a dish, let alone tv - luckily my property formed the boundary of the "park" so I could mount a couple of sat dishes that were "technically not in the National Park"
Just my two pence worth obviously
Andi