ive moved house and a sky dish was already up.so i cut the cable and connected with a joinner to my main dish.this morning picture was breaking up so went outside and checked connections.on the old sky cable side of the joinner what goes to the box it was black and quite warm and smouldering what could have caused that to happen?? ive replaced the old cable with new and joined again.never had that happen to me before and ive done a lot of dishes connections etc in the past ?? any help thx