1. A method comprising: displaying a plurality of graphical tiles within a discovery interface, each graphical tile representing an offering of available content and having at least one dimension parameter designated for an unfocused state of the graphical tile; receiving input moving focus within the discovery interface; detecting that the focus has been moved to one of the graphical tiles; altering display of the discovery interface such that at least one dimension of the focused graphical tile is displayed as expanded to exceed at least one corresponding dimension parameter designated for the unfocused state, responsive to the detecting.