Hi, I got a brand new Pioneer DVR-550HX yesterday. Even though it has great features, the performance of the DVB tuner is quite poor compared with the internal one on my Samsung M87 TV. I don't know the specifics, I'm no expert but I can say the the picture quality is quite worse than the Samsung. That would not be a big deal, since the recorder tuner would only be used when recording, which I only do occasionally. The real problem is, the DVB tuner works (almost) OK if the HDMI output is set the to 576p, but if I set it to 1080p, most channels will show "No signal" and those which show images is with constant freezes or blocking (just as when there's a poor signal). It auto-detected all freeview channels when it was set to 576p, but when in 1080p I cannot get a decent view. Now, what should I do? Return it and ask for a refund, or for a replacement unit? Is this the normal for this model or just my unit? Can this be a bug that could be solved with a new firmware? Anyone experienced such a thing? Thanks!