I am in a similar situation as the original poster. I will be using 3 identical floorstanders as LCR (rocket rs850s). By placing the speakers directly on floor level and a 92" 16:9 screen 2ft off the ground, it will be placing the tweeters directly at ear level, and 1/3 of the screen height. The L/R will be just outside the screen to give the perfect 9' spread for 11.5ft seating distance, and only the C speaker will be behind the screen.
This means that the bottom of the screen frame will be cutting across the front of the speaker. It will prob be a 2-3" piece of wood wrapped in velvet, and the speaker will be 6-9" behind the screen/frame.
Has anyone else done something like this? How bad is it to only cover the top half of the speaker with the screen for quality purposes. How much of an effect will having the piece of wooden frame in front of the speaker cause, will it be noticeable at all?