If you don't want to waste money on the monster solution, I'd just use hot water and a soft terry-cloth (think cloth diaper). The rag has to be very very soft and not scratchy.
Never use any cleaning solution unless it is specifically for HD TV screens. And even then, hot water on a rag that's rung out so that it is just damp is an easy solution.
NEVER USE WINDEX or any glass cleaners. You will destroy the anti-glare coating....
