What does that mean? Besides the obvious, meaning you can now place a Google ad on TV, it means you can start a TV campaign right from your AdWords account. It's all done via the web:

choose your target audience
choose the networks, dayparts, and specific programs you want your ad to run on
choose the cost-per-thousand impressions you’re willing to pay

You don't actually pay until after your ad airs.

Missing the all-important TV ad itself? You can use Google’s Ad Creation Marketplace to connect with the pros who will make the ad for you. And, for a limited time, Google will cover the cost of creating an ad through the marketplace, up to $2,000.

Source: Tech Ex