Commercial grade NEC digital signage displays use the Open Pluggable Standard. You can insert a number of modules into the OPS slot, from a SDI video receiver,

Commercial grade NEC digital signage displays use the Open Pluggable Standard. You can insert a number of modules into the OPS slot, from a SDI video receiver, to a nasty Android based media player, or even a full x86 PC. I've said it before here, but I'm getting a second hand NEC commercial display as my next TV. I've used them at work and they are excellent panels.