Either I've just not realized these buttons were there, or they are new. The first one seems to be a channel or show description button of some type. It shows up between go to live and volume. The other one is to the left of categories. I can't figure out what it is for because nothing seems to change on the screen when I double tap it. I want to help a friend label the buttons, but I don't want to tell him the first button is categories when I have this phantom button here that could completely throw off the order. Can anyone help?