A method comprising: displaying a tiled video display on a screen of a display device, the tiled video display including a plurality of video tiles that each show video content of a different video stream of a plurality of video streams, the video tiles arranged on the screen according to a tiling layout; displaying a user interface, UI, on a touch sensitive screen of a wireless mobile device separate from the display device, the UI showing a virtual display screen including a plurality of UI tiles that each corresponds to a respective video tile of the tiled video display, the UI tiles arranged on the virtual display screen according to the tiling layout of the video tiles, the UI tiles each including a static image or video content corresponding to the video content being shown in the respective video tile of the tiled video display, a particular one of the plurality of UI tiles having a sound icon disposed thereon; playing audio associated with the video tile to which the particular UI tile corresponds on an audio output device; detecting a gesture over at least a portion of the particular UI tile on the touch sensitive screen; in response to the gesture, modifying both the particular UI tile on the virtual display screen and a corresponding video tile on the screen of the separate display device, wherein the modifying includes resizing the particular UI tile and the corresponding video tile, wherein the resizing of the particular UI tile and the corresponding video tile transitions the tiling layout to a different tiling layout that includes a different number of tiles, the transition being according to a predefined expansion or contraction progression that defines a series of transitions between tiling layouts; detecting a further gesture on the touch sensitive screen; in response to the further gesture, moving the sound icon from the particular UI to another UI tile on the virtual display screen; and playing audio associated with a video tile corresponding to the another UI tile on the audio output device. displaying a tiled video display on a screen of a display device, the tiled video display including a plurality of video tiles that each show video content of a different video stream of a plurality of video streams, the video tiles arranged on the screen according to a tiling layout; displaying a user interface, UI, on a touch sensitive screen of a wireless mobile device separate from the display device, the UI showing a virtual display screen including a plurality of UI tiles that each corresponds to a respective video tile of the tiled video display, the UI tiles arranged on the virtual display screen according to the tiling layout of the video tiles, the UI tiles each including a static image or video content corresponding to the video content being shown in the respective video tile of the tiled video display, a particular one of the plurality of UI tiles having a sound icon disposed thereon; playing audio associated with the video tile to which the particular UI tile corresponds on an audio output device; detecting a gesture over at least a portion of the particular UI tile on the touch sensitive screen; in response to the gesture, modifying both the particular UI tile on the virtual display screen and a corresponding video tile on the screen of the separate display device, wherein the modifying includes resizing the particular UI tile and the corresponding video tile, wherein the resizing of the particular UI tile and the corresponding video tile transitions the tiling layout to a different tiling layout that includes a different number of tiles, the transition being according to a predefined expansion or contraction progression that defines a series of transitions between tiling layouts; detecting a further gesture on the touch sensitive screen; in response to the further gesture, moving the sound icon from the particular UI to another UI tile on the virtual display screen; and playing audio associated with a video tile corresponding to the another UI tile on the audio output device.