I can purchase a large screen television from any electronics store such as Fry's Best Buy Sears basically anywhere that sells electronics will have one.
Most large screen televisions have awful pictures but if you purchase a large HDTV they have great pictures, and the colors on the HDtv's are wonderful.
You can call a repairman or technologist. You might have to purchase a new large screen TV all together if the watermark stains do not come off of the large screen TV.
The best month to buy a large screen TV is in January.
Most electronic store such as BestBuy, or any local store in your area should carry TV protector, although I never seen one. Try Amazon.com and see if they do have the same size that you are looking for.
An 80 inch television is likely to cost around $1,200. This can vary greatly depending on who you purchase it from, though. Major retailers often don't sell televisions this large.
One can sometimes find a good used big screen TV for sale in the classified section of your local newspaper. There are also thrift shops and pawn shops that one can get a used big screen TV. There are also several websites that have used TVs for sale.
2013
There are a few different advantages to using a digital projector over a large screen television. Some of the advantages are better color, better picture, and sharper images. However, digital projectors are more expensive than large screen televisions.
LCD tvs are the best choice. I have a large screen LCD tv and it makes video games look extremely realistic.
The best quality company I know of for large screen televisions is samsung. They have great clarity, color, and resolution. Try www.ebay.com and also, www.amazon.com for more information.
In Portland, Oregon, you can find a flat screen tv at many different places. However, if you purchase your flat screen at your local Wal-Mart, it will be inexpensive, and include delivery.
Large screen TVs can be hired from many technology rental companies. People sometimes prefer to hire due to the speed of the market - it's possible for a TV to be obsolete in just a couple of years.