A display device and method for displaying images are discussed. According to an embodiment, the display device includes at least one first tuner configured to tune to a plurality of different broadcast channels; a display screen configured to display a multi-window including a plurality of sub-windows, each of the plurality of sub-windows configured to display images from a different one of the plurality of broadcast channels; an input unit configured to receive a user's input for editing a channel list including the plurality of broadcast channels; and a controller configured to control the at least one first tuner, the input unit and the display screen.