I have recently bought a Pioneer 436xde and generally the picture is excellent. However, I have noticed that when watching sport (football normally) there is a slight picture flaw immediately after there has been an action replay. The best way of describing it is that there seems to be less frames per second for a very short period immediately after the action replay which causes the picture to look a bit juddery. The picture reverts to normal after a couple of seconds. I have checked this out using both Sky+ and freeview and it happens on both. Anyone got any ideas?