It's a well-known fact that new technology ushers in a barrage of deals on the previous-generation tech it replaces. But this year the stakes are higher as the TV industry braces itself for one of the biggest debuts we've seen since the introduction of high definition — OLED panels. We can't help but wonder how OLED will affect prices of other TVs, specifically LED-based LCDs, so we turned back the clock to the summer of 2009 to see how LED itself impacted pricing when it first hit the market.