Al Griffin

Q I’m using an older A/V receiver in my home theater to connect the optical digital audio outputs from a Fios TV box, OPPO Blu-ray player, and Gen-2 Apple TV. I want to upgrade to the new Apple TV, but it only has an HDMI output and no optical digital audio connection. Here’s my question: Are there any optical-to-HDMI audio converters that will let me keep using the same receiver in my setup? —Lavern Lee

Q I am in the market to buy a high-end Dolby Atmos AV Receiver for my basement home theater and have shortlisted the following receivers: Yamaha RX-A3050, Denon AVR-X5200W, and Marantz SR 7010. I also have a Sony receiver that powers a KEF 5.1 speaker system in my living room.

I was looking at the manuals for these receivers online and they all have second-zone HDMI and preamp outputs. Would it possible to use the new receiver’s Zone 2 HDMI or preamp outputs to send surround to my 5.1 system upstairs? —Bhaskar Vooradi

Q The Rec. 2020 color gamut is the future of TV—the standard was set years ago and has been included in the specification for Ultra HD Blu-ray. Even so, UHDTVs have been around for a few years yet none can display the Rec. 2020 color gamut. Why? Are we one day going to see Rec. 2020-capable LCD and OLED TVs, or is it true that only laser projectors are capable of reproducing that gamut? —Karim Genio / Algeria, North Africa

Q I own a Roku streamer plus a Blu-ray player and TV with streaming apps. I'm also aware of websites for downloading "Hi-Res" audio to computers and portable players. Here’s my question: Which of these sources support surround sound music?

If you put together the thousands of SACD releases, plus releases on the DVD-Audio and Blu-Ray Audio formats, you’d think somebody should be offering streaming surround by now. I sent a question to Roku support and the answer I got was that basically "all" Roku apps support surround sound. But that sounds like a“technical capability” answer; I haven't found any content yet. —Wayne Erfling