Keeping direct light off your screen and setting up the right screen for your environment is key to getting excellent performance from your PJ. Sports can tolerate a lot more ambient light than most movies so being able to control the light in the room is important.
Gregg is right though, you really can't compare a flat panel to the front projector cinematic effect.
Unless you really could not care less about the size of your screen, a projector properly setup is going to become your favorite viewing method. You will kick yourself for not doing it sooner.
I have a 92" screen myself but only because I run my PJ in a 12 foot square room so I can't get the PJ back any farther to shoot something larger like 120" or even 135".
The picture looks even better than what you see here, but here are a couple examples from my setup:
Optoma HD70, 720p, 92" painted on the wall screen - EasyFlex-06 Formula -
Late afternoon with the shade down on the floor to ceiling window, no direct sunlight
Later in the evening - the room has a 4 foot wide walkway into the room on the opposite side as the window seen above. The lights are on in the next room and viewers are not sitting in total darkness but can easily read if they prefer to: