The magic words you are looking for here is 'commercial display' and it will always cost more than a comparable sized TV -- smaller volume of production & sales and the manufacturer is forgoing the revenue stream all of that adware and crapware on the standard TV offers them. It may have audio ports but is unlikely to have more than toy speakers because a commercial installation knows to keep the audio and video separated.

tl;dr you can get something close to what you want but you are going to pay 2X or more for the unit compared to a similarly sized TV.