A sure sign that Valve is set to launch a new title is the release of a television commercial for the product in question. Luckily for gamers eagerly anticipating Portal 2, Valve has just released a TV spot for the upcoming title.
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Featuring co-op mode stars Atlas and P-Body, the television trailer shows off some of the classic Portal-style fun players can expect when the sequel launches.
If you're looking to learn more about the game's single-player story, our recent preview from PAX East 2011 describes the game's start. However, if you'd prefer not to have the experience spoiled, just cycle through our screenshot gallery while you count the days until the game's April 19 release.