Cardboard...
Each time I moved my old 200 pound 36" tube tv I just slid it on a large piece of cardboard. It will glide across the floor fairly easily once you get it moving. For stairs, turn the tv sideways and make sure a piece of cardboard is taped to the screen to prevent damage. I've moved mine on my own, but it was easier with a friend to assist.
On my own I got in front of the tv and braced myself, then slid it down slowly, one step at a time. Make sure to push the leading edge into each step so the tv doesn't go for a sled ride with you in front. If you have a buddy, just throw anything soft (rolled sheet, tie down strap, etc) around the front and have him work it from behind like a set of horse reigns.
If you have hardwood floors, they may scratch if you slide it across them. I've used an old skateboard to roll tv's across those and concrete, even a half a block down from where I parked to the house.
Good luck
Jack