Option 1: If you size needs are modest, buy a monitor. For example, Dell's Ultrasharp monitors are mostly 4K and go up to 43" in size and are often examined by reviewers for color accuracy and performance since they are used in digital media production. They are, of course, not inexpensive but not unaffordable, and can be dual-purposed for work or hobby computer usage.<p>Option 2: Buy a projector. The home theater models are scrutinized closely by reviewers for video quality and, last time I checked, come without smart TV features. Prices range from merely expensive to blisteringly, eye-wateringly expensive but can be ameliorated slightly by purchasing used units.