You’re walking through the Television section of your preferred electronics retailer, and you see two TVs side by side. They are the exact same size, even the same brand, and both are Ultra-High Definition TVs. But one single letter really sets them apart…as does a several hundred-dollar price tag. What’s the big to-do about OLED that has enthusiasts in a tizzy, and retailers throwing around that buzzword like it’s the best thing since Netflix? Let’s look under the hood and figure out what’s so great about OLED.