Often referred to as big screens, projection TVs come in two different styles: front and rear. Front and rear TV’s operate in the same manner by forming a small image and reflecting it onto a larger screen. The difference is where the receiver is located. Rear projection TV’s house the receiver inside the viewing unit, while front projection models feature a receiver apart from the viewing source (i.e. across the room). Rear projection televisions come in CRT, DLP, LCD, and LCOS. Front projection televisions come in CRT, LCD, and LCD, and are the foundation for a home theater system.