The recommendation for a commercial panel which avoids built smart TV functions is one I'm taking seriously. We have an Apple TV connected and use nothing else. Does anyone have experience or recommendations? Here is a link to NEC's commercial displays https://www.sharpnecdisplays.us/products/displays#2
Things like contrast ratio, how well it does dark colors in a dark room or fast intesity refreshing (like 60Hz "fast") may be questionable. It probably also expects super consistent and clean power...some houses dont have that.
Sure you could make it a giant Dakboard with a giant static image and not really worry about burn in for years.
Ultimately. I went with a cheap panel from say costco and a roku on a separate vlan (so my overkill is a network that can do vlan segmentation). Ultimately the roku TV's can scan themselves to death and report that they are on a network with other roku TV's all they want. Or you could just get a cheap-o smart TV and hook up the appleTV (cost came into play for me). I do have some LG smart TV's, one died within 3 years already...Meanwhile my Samsung 55" Plasma from 2008 had taking a direct lightning strike that took out the others and keeps on ticking. (and resulted in the TCL roku and LG tvs being installed).
So all of that is to say. I just go cheap panel that i dont mind replacing. And just keep them isolated entirely.