They are based at Bishop Auckland in Co. Durham and have (had?) a small factory shop if you happen to live anywhere in that direction?
I'm actually going up that way tomorrow.
We got back home this afternoon & I plugged the TV into the 12V socket & did a channel search. It picked up & stored about 70 DTV channels. This is parked on our drive, between 2 houses & the aerial pointing nowhere near a transmitter. I watched some rugby for 20 mins without losing the signal.
Will leave it on a bit longer tomorrow, see what happens.
The site owner In Blakeney said the TV reception from any Norfolk transmitters is abysmal (for them) & they use Yorkshire & Lincs!