Glare reducing window film, diffusing film or accordian blinds may be options to look into. Accordian blinds can be pretty nice. You get new TV, wife gets new decor-- win win.

My living room setup has a wall mounted panny plasma opposite a picture window. We close over the blinds when we are watching TV and there isn't an issue with glare. Blinds open on a sunny day is a complete other story. I end up watching the tree in my front yard! Talking trees are strange. Unless it's treebeard.....