There's a new display technology in town -- OLED (Organic Light Emitting Diode) -- and it could be coming to a large TV near you very soon. Plenty of big-name manufacturers have already produced OLED TVs, and others are promising to have sets available within the next couple of years. OLED has a lot of very attractive characteristics meaning it can has the potential to power large, bright, thin, energy-efficient televisions. Then again, LCD and plasma TVs currently rule the roost and are no pushovers when it comes to features. Should you buy an OLED TV? Let's take a look...