Older thread, but I was looking this up again, after a Facebook conversation.
In my low budget, high WAF theater, I sit about 8 feet from my 100" diagonal projected 1080p image. I think it's perfect. THX would tell you I should be 3 or 4 feet further back, which imho is CRAZY! Maybe there is a reason why there are now only a couple dozen THX commercial theaters left.
THe low viewing angle goes in absolute stark contrast to IMAX, which is supposed to be the ultimate viewing experience, right? Even the LieMAXs To meet the THX recommended viewing angle in a LieMAX theater, or the bigger screens in a modern multiplex, you'd be near the back row (hell, maybe back in the projection room), and of course then WAY too high. NO ONE who has a home theater would choose that. We're going to choose the 3rd or fourth row up from the wheelchair level that puts our eyes 1/3 of the way up the screen, with a very large viewing angle.
Why on Earth would I choose a much tighter one, perhaps half of that, at home? Yeah, if I stare at a static image on my screen, I can see pixels. But guess what, once Deadpool starts counting down bullets, I'm sure not seeing pixels.
I do this: Go to your favorite theater, sit in your favorite seat, and take a real close look at how the screen looks. If you wear glasses, they are a GREAT frame. See where the screen lies in respect to your frames. Most likely it fills them. Now go home, and sit at the THX distance from your screen. It won't even be close to filling up your frames.
THat brings me back to why I'm here. I saw yet another person bragging about a home theater on FB that has the seats ridiculously far from the screen, and too high. People will drop tens of thousands of dollars on a theater, and have a very sub par experience to the local Regal, and wonder what went wrong.
I really should design home theaters for a living. So many people get taken by dumbasses who have no idea what they're doing.