I haven't used the pause and swap since it first came out(literally day one), and then it would do four channels(all three tuners in use, two channels were prime time, and pushed all four. They work with the same one hour buffer as if watching live. This was just testing the feature, personally I find it almost useless for my personal viewing experience. If it doesn't work since then, I would be unaware. I just know what it was designed as a fix for. And at one point did work.