I bought an LG OLED commercial signage display. It's just a 55" panel, 1/4" thick, with a ribbon cable to a power-and-control box with one HDMI port. No internet or wifi connection; the software just lets you use the remote to configure the display.
Into it I plugged a Denon HEOS receiver, which is WiFi-connected for the purposes of serving as a Spotify and AirPlay output device, and which drives wired and wireless speakers. Into the HEOS runs an Apple TV for video streaming, a DVD player for old times' sake, and my wife's phonograph.
How do you navigate the purchase of commercial signage display? I tried to do some research a few months ago, and manufacturers' and retailers' sites were all punishingly awful in being clear about specs, geographic (in Canada) availability, which models were discontinued and unavailable, actual pricing, etc.
It wasn't easy! I found the model I was interested in listed online by Newegg, Walmart, and CDW – but it took about 5 months to get!
Newegg and Walmart had the lowest prices but turned out to fronting for the same seller, who was running a bait-and-switch. I ordered through Newegg first – and received a different product! A big heavy LCD display. I shipped it back to them for a refund.
Then I ordered through Walmart – and again received that other product! After the seller refused to exchange or refund and stopped answering e-mails, Walmart refunded me the price – and told me to keep the LCD display, which I donated.
Finally I ordered from CDW, who shipped me the right product – but under all the cardboard and styrofoam it was packed in, the corner of the display was bent up 90 degrees! And the display wouldn't light up.
To their credit, CDW shipped a replacement unit right away. It was in perfect condition – you can watch me unbox it at https://youtu.be/o9Mu4K-ApkU – and I'm watching it right now.
Into it I plugged a Denon HEOS receiver, which is WiFi-connected for the purposes of serving as a Spotify and AirPlay output device, and which drives wired and wireless speakers. Into the HEOS runs an Apple TV for video streaming, a DVD player for old times' sake, and my wife's phonograph.