My opinion is slightly contrary to what others have posted, although my viewpoint might be slightly different because I'm only doing QAM-256 tuning. I've been using a pcHDTV HD-3000 card for about a year now. The pcHDTV cards are specifically designed for Linux, if not for MythTV. It was a little bit of a pain to setup because the Myth QAM channel scanning wasn't really working when I first set up the card, and also because my cable company strips out the channel information from the streams. So, it was very much a manual process to figure out what channels I could receive, and to get them configured in Myth. But that's not really the fault of the HD-3000 card, and since I got it going I've had great luck with it. Excellent reception, excellent picture and sound quality. I've also got a PVR-150 and a few other PCI cards, and I've not experienced any interference issues or anything like that.
<br><br>On the other hand, I added a HDHomeRun to my setup at the beginning on the year and had a few problems getting it going with Myth. First there was an issue with the Myth QAM channel scanner for this device, which forced my to upgrade
0.21 trunk to get a fix (I prefer to run the stable release over the development release). Jarod Wilson has since gotten the necessary updates into the fixes branch, but it was too late for me. After I got that issue resolved, I ran into another mysterious problem where I could not do anything at all, related to the HDHR or not, on my Myth front-end box while recording from the HDHR or I would end up with "corrupted" recordings. (see thread in archives from a few weeks ago for details.) With the help of people on this list I finally tracked the problem down to my onboard NIC. I still don't really know why it was a problem, but putting in a PCI card NIC solved the problem. Now that those problems are solved I'm pretty pleased with the picture and sound quality of my recordings. I would also point out that with the HD-3000 card I consistently get mid-to-upper 90% reported for signal strength within Myth; with the HDHR I would only get mid-to-upper 70% for signal strength, until I recently added a cable signal booster to my setup. One final point. While the HDHR seems to have been designed with Myth in mind the only support for the device is through the online forums. I've gotten the impression that there is only one "official" person, Nick (jafa on the forums), responsible for answering questions posted to the forums. Yes, other users try to help out, but Nick's time to answer all the questions posted seems to be stretched thin. Just one person's opinion.
<br><br>I don't want to discourage the original poster, or anyone else for that matter, from getting the HDHR. I love the fact that it has open source software, and specifically supports Myth. The device is still relatively new, and I think going forward it has tremendous potential. For ease of physical setup it can't be beat. Plug in a network card and connect up an antenna or cable source and you're pretty much good to go. Just wanted to offer my experiences with a couple of different options.
<br><br>