I fully believe that some of the final (Largest, probably longest panel life.) generation of plasma screens should come with some little flat-pack Ikea style jin-pole type rigging hoist system. One of the wall-bracket makers should have gotten in on that. The only reason it takes more than one normal guy to hang an 80+ inch LCD panel is that its just too damned big to effectively control as you're dropping it into position.
BRAINSTORM!
Going to go lash together something that looks like the offspring of a Hi-Lift jack and a semi-trailer cargo-bar (load stabilizer). Build them as cheap and nasty as possible and sell them in pairs so you can lean them against the wall, then manhandle the panel onto the lift points at a few inches above floor level, and then you jack the panel up the wall smoothly and safely. I'm pretty sure a pair can be made out of spot-welded stamped steel sheets (Think AK47 parts/mags) for less than $30, and sold for $89.99 or more. Possibly make a more durable system that can be rented like a carpet cleaner or paint sprayer on a materials budget around $150.
