The all-new Chevy Silverado and GMC Sierra represent General Motors' (NYSE:GM) most important new-product launches in years. GM has made it clear that it's pulling out all the stops on this one, and that means a big ad blitz is coming to a TV near you.

In this video, Fool contributor John Rosevear looks at the latest news on GM's big launch -- and at some hints as to the shape of the massive marketing campaign that's about to be set loose on America.

Fool contributor John Rosevear owns shares of Ford and General Motors. Follow him on Twitter at @jrosevear. The Motley Fool recommends and owns shares of Ford. It also recommends General Motors. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.