[Vulcan]

A TV isn't just a TV anymore. Do you want a 3D TV? Do you want a smart TV? From the size you mention you're probably looking at a LCD with LED back lighting although there are some good inexpensive Plasma TVs in the 42" size.

I suggest you go to a big box store and have a look at the TVs in your price range and write down the model #s of the ones you like and do some research on them on the net. I also suggest you stick to well known brand names such as LG, Samsung, Sony, Panasonic, Sharp etc. Last years models should be on sale right now also. Have fun searching and good luck.