The comedy here isn't trying to land a joke every ten seconds, it's living in the spaces between four girls doing absolutely nothing remarkable. You watch them eat lunch, complain about trivial stuff, accidentally say something that lands sideways, and somehow that's enough. These episodes exist in the margins of the original series, which means they're pure oxygen, no plot obligations, just the specific texture of how these four people inhabit a room together. It's the kind of show that makes you forget you're waiting for something to happen because nothing happening becomes the entire point.
A-Channel: +A-Channel is a set of eleven extra episodes released in 2011 on the DVD and Blu-ray volumes of A-Channel. The specials fall under comedy and slice of life, offering short bonus material for viewers who picked up the home video release.