Anti-reflective screen types don't eliminate reflections, they diffuse the reflected light into an amorphous haze. This serves to reduce the identifiability of reflected objects but still interferes with the image being produced by the TV. Light must pass both directions through glass that has anti-reflective properties. Therefore, anti-reflective glass will affect the TV picture somewhat. This downloadable PDF document from NIST has a very effective explanation and graphical representation of how screen reflections affect a TV picture:
Flat Panel Display Laboratory: Patterns .
There is no way to completely eliminate the effects of ambient lighting upon TV images without incorporating some light control in the room. Any light originating from in front of the screen will contaminate the image to some degree. Independent of glass type, plasmas still produce the best looking pictures. Both LCDs and plasmas will produce their best image using glass without anti-reflecting properties. You will simply have to balance all these factors and make your best informed decision.
Best regards and beautiful pictures,
G. Alan Brown, President
CinemaQuest, Inc.
"Advancing the art and science of electronic imaging"
