At Wal-Mart, the cheapest flat screen television in-store is $139.54. This particular model was a Phillips 19" television. However, a refurbished 15" Coby television is priced at $79.99 at Best Buy. Everything depends on whether or not you want a new television or a refurbished one.
It depends on the brands that you want to buy. You can shop with online sites, or you can go to any local electronics stores in your local area when purchasing.
You can buy a flat-screen Sharp television from any electronics store near you that carries flat-screen televisions. Alternatively, you could purchase the television from an online retailer, such as Amazon.com, but you may be able to save on shipping costs if you haul it home yourself from a local store.
I suggest recording the make, model, and dimensions of your TV and going into local electronics shop, who should be able to find the right ones for you using that information.
All of the local box stores have brackets to mount flat screen tv's on the wall. One of the cheapest places I found was the local flea market. They are new brackets at half the cost.
When looking to replace your current television with a newer more sleek wall mounted high definition screen scout out the electronics and home entertainment sections of your local big discount stores.
Wal-Mart sells many TV brands for low prices. A local electronics store would also be a good place to check. Don't forget to ask available employees for their professional opinion.
You will probably have the best luck looking for cheap TVs on your local craigslist, or at yard sales and on heavy waste pickup days-- people frequently throw away perfectly good, decent sized tube TVs. For the cheapest new prices, check your local electronics wholesalers before going to major retailers.
If one wanted to buy a LCD TV with a 17 inch screen, one should visit their local electronics store such as Future Shop or Best Buy. There are also many online retail stores such as Amazon or brand specific stores such as Sony or LG.
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.
A local TV repair service facility should be able to take care of this for you.
Just take your electronics to the local dump or landfill site and they will look after disposing of them for you.
I would recommend you 'settle' for what you want. A sixty inch should be a great size as long as you aren't more than twenty feet away from the screen. Take a look at your local electronics store and see what you like.