I have been looking for a 28" set. I cannot decide between a SonyKD-28DX51 and a Panasonic TX-28DTX10 Both have freeview. The Sony is 50Hz whilst the Panasonic is 100Hz. I have looked at the two side by side - both have very good pictures with little to tell between them. Can anyone help - I am no expert so what should I be looking for?