This "Title Unknown" problem has been going on for ages with the iplayer! I am unaware of any fix yet. In fact this is the first time I've seen anything written about this. I have tried re-setting my BDP-S570 and unplugging it from mains supply..etc but has made no difference. It seems the BBC are not, for whatever reason, streaming this information...why? I would really appreciate a reason for this if anyone knows? Does this happen to Panasonic players? If this is a Sony issue only, maybe it's time to update to another 'information friendly' brand.