The largest screen size available in the Samsung plasma Tv line is 102 inch plasma Tv,which might cost you around $45 000 which is very expensive. But its up to you.
Your Samsung TV probably has a delay in Milliseconds. This delay will always be there, you might want to try HDMI if you haven't as it might be a little fasther then component. The delay of your Samsung TV should not be noticable.
The best places to look for wall mounts for any plasma TV would be Best Buy, Radio Shack, HH Gregg, or Walmart. Also, if you belong to any club stores, you may be able to find them at a better price at Costco, Sam's Club, or BJ's.
Try a reputable online retailer, or the website for a reputable brick-and-mortar retailer. For example, amazon.com or bestbuy.com might be good places to start.
There are a variety of brands available, but the most commonly seen are Sony, Samsung and Panasonic, all of which offer LCD and Plasma TVs. The best way to investigate this might be checking the website of your preferred electronics vendor and seeing what they have to offer.
Try newegg.com and amazon.com for the most consumer ratings on Samsung products. You might also try the Samsung website, samsung.com, as they might also have reviews.
"Depending on your preferences, the plasma might be a better buy for your needs. Plasma screens are known to have better viewing angles and obviously better price. The plasma screen has more of a ""cinema"" type look to it."
You would have to figure out the model of the Samsung TV you need the manual for. If you go to this website, http://www.usersmanualguide.com/samsung/tv__lcd they have manuals available to look at online. If you go on the Samsung website they might have downloadable manuals for you to use too.
There are many places one might go to purchase a USB TV. In addition purchasing from tech-focused store such as Best Buy, one might also purchase a USB TV from Amazon.
There are many places one can purchase a cheap LG 50 plasma screen. In addition to the retailers Walmart and Best Buy, one might also purchase a plasma screen from Amazon.
There are many places one might go to purchase a Samsung phone that works with a Verizon plan. In addition to the Samsung website, one might also try the local Verizon store.
Touchscreen TVs are quite rare, and most probably not available even in the local electronics store. The best place to buy one is either from the manufacturer (Samsung, LG have some models), or through a specialized reseller.