I'm hoping someone can weigh in with some advice... I've used an external antenna for free off-air HDTV and used to run it directly into my Samsung LCD HDTV (model LN52A650). I finally bought an A/V receiver and was surprised to see that there is no obvious place to use off-air HDTV antenna as a "source" for the TV. The only coaxial-type inputs are a "Coaxial IN DVD" which is evidently for sound only, and a coaxial input for FM antenna. Anyone use off-air HDTV with their home theater receivers, and anyone have any suggestions. The reception is sensational, btw; better than cable with no compression artifact, etc. Thanks!