Jan I find it amazing that you are offering an opinion on whether or not it’s too much granite without seeing the fireplace wall.

If it's got even a 36 inch box, and an eight foot ceiling and its as little as 60 inches wide? Yeah..it's a lot of granite. Of which I am not a lover to begin : ) so there's the confessional cubicle for the morning. lol

And as tech moves at speed of light? I am not for hard fixes, difficult to go back and re invent. How many pocket door ARMOIRES went in a landfill in the last 25 years? How many plasma tv's the size of a garage door? It's like shooting ducks in a gallery and expecting to do it with cement baseballs. hahahahhaha

I still have, and use, the mahogany TV armoire I had custom made to house a 50" plasma back in 2004. I made sure to have it made to fit a 65" size, which was out of our budget back then. It now houses a 65" and still looks good with the doors open or closed. Oh, and we still have that 50" plasma we bought in 2004 and it still works like it was brand new, even after having been moved and used half way around the world and then brought back to the US. Good quality items don't need to end up in landfills ...

Bharat, make sure you plan where you want the components to be stored and run all the necessary cables.

Following framing, electricians should install power/cable/hdmi boxes. Granite installers will take that into account for cutouts.

There are those who love to see a TV above the fireplace and others simply detest it. I've always been the latter, then again in our new home we changed our mind because it made perfect sense to have the TV above the long linear fireplace.

I feel it is important to tie the backdrop fireplace wall, its height and width, fireplace type and dimensions, TV dimensions and placement, and most importantly TV viewing distance, all together. What it is you want to stand out, the wall, the TV or the fireplace; focusing on the TV makes most sense since it will be the changing wall segment (when switched on). A TV above a 5' or more fireplace, watched from a distance of 10' is going to create neck strain, even a 65" TV watched from a distance of 15' is likely to create a neck strain forcing a user to gaze up. The same TV 40-45" off the floor would work fine from say 15'-20'; it all depends on the space you have; these are not formal calculations but can be worked out.

In our case the 88" TV will be 44" off the floor, above an 8' linear fireplace for an average veiwing distance of 22', seating area in family room. The 9' wide x 12' tall x 2' deep fireplace/TV wall will be clad in 24x24 wall tiles; the fireplace/TV wall is set in the center of a 24' wide wall; search my posts for renderings.