Al Griffin

Q I have TVs connected to both of my Onkyo TX-NR636 receiver’s HDMI outputs and am finding that I need to have both sets switched on before the receiver will pass any video content. Any suggestions on what settings to look for?—Chris Hauer

Q I am looking for a new Blu-ray player and have a question. What’s the difference between inexpensive models and ones that cost $300-plus? It seems to me that inexpensive models have as many features, if not more, than pricey ones. If it’s a question processing power or something else, does that make a huge difference in picture and sound quality? —Edwin Vela

Q I own a 720p-resolution Pioneer plasma TV. Every time I use my old plasma—now relegated to my photography studio after being replaced with a Full HD LCD model in the living room—I am blown away by the rich blacks and crisp color. It just looks better than LCD. With the arrival of 4K and HDR (finally, TV tech that can match the color gamut of the computer monitors I use for photography), I’m thinking it may be time for another upgrade. Are there any HDR-compatible UHDTVs that perform well enough to finally end my love affair with my plasma? — Ed Nazarko / via email

Q I own an NAD T 787 A/V receiver that only supports regular HD video pass-through and Dolby True HD/DTS-HD Master Audio processing. This receiver features NAD’s MDC (Modular Design Construction) for hardware upgrades. NAD offers an audio module with Dolby Atmos support, along with outputs for two sets of height speakers. If I stick with my current 5.1 speaker setup, would the Atmos module upgrade improve sound quality? Or will my receiver simply downmix the Atmos soundtracks to 5.1/7.1 surround with no audible improvement? —Phil Tomaskovic, via email