1. Tangible, non-transitory computer-readable media having stored thereon instructions that, when executed by one or more processors of a computing device, cause the computing device to perform functions comprising: receiving a command to display representations of playback zones in a media playback system; after receiving the command, determining that (i) each zone of a first subset of playback zones in the media playback system is associated with media content and (ii) each zone of a second subset of playback zones in the media playback system is not associated with media content; in response to determining that each zone of the first subset of playback zones in the media playback system is associated with media content, displaying an expanded format representation of each playback zone in the first subset; and in response to determining that each zone of the second subset of playback zones in the media playback system is not associated with media content, displaying a collapsed format representation of each playback zone in the second subset.