Just got a Sony AF9 TV and my initial thought was to upgrade the Netflix subscription to UHD. Before doing this I thought I'd try the normal HD with the new TV and the results are very impressive. My question therefore; is it worth paying the extra for the UHD subscription. The TV up scales to 4K and I know the proper 4k content will be better but will it be significantly better. Also the amount of content that 4k may be limited and I will end up watching a lot of films / shows that are only 1080P at best.