I'm debating with my dad of either getting a 37" or a 40" Samsung LNXXA550 for the living room. He constantly keeps saying that getting a TV too big while you're sitting too close is bad for your eyes. I know that, and I measured it from the couch to the stand and it's roughly around 9 feet (8.6 to be exact). So I was wondering is 40" a good size and will I see any pixelation if I get a 40" vs. a 37" LCD?