The HTPC in my living room is the fastest/most modern PC I own. My current TV is a 24" tube TV, so I have to hook up a secondary monitor in order to read anything besides the menus in Windows Media Center, and that alone is kind of annoying. I'm also tired of having to sit on the floor to do any web browsing or reading on the PC, since there's no practical way to set up a computer desk over there.
I've seen charts on recommended TV sizes for various viewing distances, but those are all oriented toward home theater, not the ability to read web pages from a distance with little or no eye strain. I'm curious whether anyone has personally tried web browsing or coding on a 1080p TV from halfway across the room. If so, what size TV do you use, and how far away do you sit (from the screen to your eyeball)?
More specifically, is a 40" 1080p LCD HDTV adequate for web browsing, reading, and general-purpose computing while sitting 12-15 feet away? If not, do I need something bigger/need to move a little closer? What size and viewing distance should I be shooting for? Aside from resolution (I'm already settled on 1080p), are there any other factors that will make a noticeable difference in the TV's performance as a computer monitor?
I found a similar question, but it wasn't quite specific enough to answer my question: http://superuser.com/questions/13218/how-functional-practical-is-it-to-use-an-hdtv-as-a-computer-monitor