You’re not the first person who’s wondered what it would be like to have a giant desktop monitor. Think of all the multi-tasking and immersive gaming you could manage if you had a 50- or 60-inch monitor instead of a standard 24-inch monitor! But you’ve probably noticed that as monitors get bigger, they also tend to get prohibitively expensive. Can you use a TV as a monitor?You’ve probably already got a big screen in your house, though—a TV. At the end of the day, isn’t an HDTV just a giant, living-room-oriented computer monitor? Not exactly. While you can use a TV as a computer monitor in most…