- How easy is it to see the map when you're sitting down?
Very easy, the TV has a very good view angle (mine is a Samsung UE46C6000) and great contrast
- How much visual displacement of mini position is there due to the angle?
Not much at all because the glass is only a few millimeters thick. You will always know if you are within a grid field or not and it will not distract you from playing on the screen
- Are you doing anything to protect the TV surface?
No, I use D&D plastic minis for monsters and the metal minis of the players have those round floor protectors you can buy for furniture like chairs, I found some that are exactly the same diameter as the mini bases:
http://www.selbstklebe-produkte.de/cosmoshop/default/pix/a/n/1206226425-17562.jpg
- How high above the tabletop does the TV sit?
5 cm (you have to calculate to inches on your own

)
- What did you do to lay it flat on the table?
Nothing special, since the TV is mounted to the wall with this here:
[ame="http://www.amazon.co.uk/Physix-Vogels-PHW-100L-Plasma/dp/B002D0V6NK"]Physix by Vogel's PHW 100L Flat Wall Mount for 32-50 inch Large LCD/LED Plasma TV: Amazon.co.uk: Electronics[/ame]
and the only thing I have to do is to click it out the wall mount and put some sturdy cardboard sheets on the table to protect the wood surface. I bought some big black sheets that are a cardboard/foam sandwich thingie from a hobby store. That's enough to prevent damage to the dinner table.
Our next play session is going to be next Friday so I'll make some pics and post them so you can see how it looks like.
Hope that helpded you a tad.
Edit says: The fact that the backside of that particular TV is absolutely flat, the cable connections are recessed as well, was also one of the reasons I chose that model, aside from that Samsung does very nice TVs with very good image quality for watching TV and that it has a very good ouput quality from PC sources.