I haven't seen it done in person. There are a few "project tables" floating around the forum here. I seem to recall a Swede or similar building a
really nice table, but I don't have it bookmarked. Probably under "User Creations" or "Links & External Resources".
That said, I have a few suggestions for things to keep in mind.
Make the acrylic a little bit larger than the tv's cutout and use a router (not the networking kind
) so that the acrylic sheet will drop in and sit tight without the need for glue. That will allow you to take it out and clean it should something spill on it.
You probably won't be able to do anything about glare from overhead lights other than turning them off. Don't expect the acrylic sheet to help. You
can get acrylic that's been "frosted" but the pieces I've seen would make the tv unusable.
Keep heat dissipation in mind. Tv's are designed to exhaust heat through the top since that's the orientation their expected to be in. Don't build a table that somehow blocks that air flow. This is less important with LED/LCD than plasma, but even LEDs burn about 110W-160W so they'll get very warm without air flow and some components could have a much shortened life.
If I were going to do this, I'd try to find a way to use a "poker table-like" fabric covering on the table. You can buy green (or blue, or red) sheets of fabric from craft and fabric stores quite inexpensively. A buddy of mine just recovered his poker table with a sheet of that stuff and some spray-on glue. It turned out
very nice. The reason I'd use that stuff is to eliminate the need for staining the wood, and with a covering you don't have to worry too much about sanding either. I would buy it large enough so it could be folded over the side and then a 1/2" half-round trim piece attached over it to keep it in place. Or maybe better would be an L-shaped bracket with the bottom of the L under the table and the upright part of the L coming around the side and providing a bit of a lip so dice and pencils and such don't go rolling off the table.
Plan to mount some power strips on the underside of the table so people with laptops or whatever will have easy access to power without tripping over cords! Another option would be to attach the strips to the inside of the legs so they're easier to find and won't be dropping into your lap.
A 4x8 sheet of plywood will be heavy! Try using something smaller, like maybe 3/8", and reinforcing it with 2x2 or even 1x1 pieces, with 6 legs (2 at each corner, plus 2 in the middle on either side of the tv). Maybe have the center legs criss-cross in an "X" shape so players' knees don't bump into the legs all the time...?
Sounds like fun! I'm looking forward to seeing step-by-step pics of the project!