Since installing the firewire on the tv 40pfl7605h_12 140.037, a local channel in my town you come macroblocks in large quantities and often too much out, I tried other HD tuners to see if I tuned the antenna and back channels the tv and nothing remains the same this is the new firewire as before did not, for what it's worth I'm from Spain sevilla city and canal 20TV macroblocks is, I hope to settle it in next firewire.