Instagram says that the time users are spending watching videos in the app have increased 150 percent in the last 6 months. That's a period that includes the company bumping the time limit for footage to a full minute. These new channels offer a way to cut through the clutter and find posts you'll be interested in quickly and easily. Like the initial "Explore" video channels, these new ones are only available in the US for now, but Instagram says it plans to ship the feature to the rest of the world "soon."