To kick off 2013, South Korean electronics firm LG launched the world's first commercially available 55" OLED (organic light-emitting diode) television. And according to LG, it's "as thin as three credit cards." Which is both jaw dropping and an entirely appropriate unit of measurement. If you want thin, expect to pay. The model's $12,000 US price tag will have you handing over those credit cards in short order.