Abstract: A display apparatus includes a display; a remote controller; a controller. The controller is configured to receive a first command for fitness training, cause the display to present one or more modes including a follow-up mode and an exercising-while-watching mode for selection; in response to selection of the follow-up mode, cause the display to show a first window and a second window disposed on a first user interface for receiving a focus move command from the remote control, with the first window displaying a first video associated with fitness training and the second window displaying a second video associated with image data from a camera; receive a volume adjustment command; in response to the focus being on a volume control for the first or second video, adjust a volume of the first or second video in response to the volume adjustment command. A method for controlling the apparatus is disclosed.

Abstract: A display apparatus includes a display; a remote controller; a controller. The controller is configured to receive a first command for fitness training, cause the display to present one or more modes including a follow-up mode and an exercising-while-watching mode for selection; in response to selection of the follow-up mode, cause the display to show a first window and a second window disposed on a first user interface for receiving a focus move command from the remote control, with the first window displaying a first video associated with fitness training and the second window displaying a second video associated with image data from a camera; receive a volume adjustment command; in response to the focus being on a volume control for the first or second video, adjust a volume of the first or second video in response to the volume adjustment command. A method for controlling the apparatus is disclosed.