Aerial sockets

 Being a newbie, I've struggled with the tv reception conundrum and bought an aerial, it is a bit of a faff. When we go to West Ayton, I understand the tv reception is poor, but the hook up points have aerial connections. I know the leads are about £14, but this, actually, is a decent price for 20+ metres of co-ax I believe.

   The question is, how many CC sites have this facility???