As I'm sure you are aware BBC moved to Astra 1N on 24th Feb joining the channels that had previously moved there. Here in the deep south, as far as I can tell, nothing has changed and all channels that I look at ( the freesat ones) are substantially the same strength and STRONG. I know that in places in the frozen north there were problems but looking at the various forums these do seem to have disappeared. Been windy up there recently ?