@johnsmit246,
In thinking about what you COULD mean, perhaps you mean the thinnest profile Flat screen TV? The depth is what matters to most people when you hang it on the wall.
I own a Samsung 46-inch HDTV (backlit-LED) and it's only 1-1/4 in deep. There are several Flat-panel TVs now that are between 1-1/4 in and 1-3/4 in deep. The ones that employ LEDs to backlight are the thinnest and offer the best pics. Coincidentally they also draw less power and are cheapest to own over the long term as they save on your electric bill.