300MW is 300MW, no matter how much the grand total is, and that's only looking at TVs, and assuming that they're all modern Energy Star compliant ones, which they're not. It all adds up.
I see a lot of people have this mindset with money. "Oh that's only $5" Yeah well $5 here, $10 there, repeat that several times a day and pretty soon we're talking real money, then they wonder why they're always broke.