Hi everyone,i'm an owner of LG BD550I have selected 24Hz on 1080p Display Mode option but when playing 1080p MKV movies via either dvd disk or usb they are playing at 50hz (my TV Panasonic TX-P42G20E is compatible with 1080p/24 Hz)1)Why the input signal on TV is at 50 Hz ?2)Is much better at 24Hz instead of 50Hz ?Thanks