[Spencer]

Have gone through Central, Wales and Granada as our main service over the years (had the three in different rooms at one point) but ultimately as aerials were upgraded to keep up with digital TV Granada is most stable where we are (and at one point was the only one that had all the muxes).  Pick up BBC Wales in SD though which generally is fairly stable.

Did have issues with Freeview HD for a while (pretty much lost it) but a new amplifier in the sorted that out.

Somewhat related, but I used to live in North Wales and I know a lot of people from there that use Winter Hill because the signal from the Welsh transmitters is incredibly weak.

I think it was the case that up until the ITV generic look came in, Granada used to feature North Wales on their weather map because of this