An image display apparatus includes: a display; a memory configured to store channel information corresponding to at least one channel; and a processor configured to execute one or more instructions stored in the memory, wherein the instructions, when executed by the processor, cause the image display device to: determine at least one preferred channel based on a search history of a keyword, when a continual channel-up command and/or a continual channel-down command is received, display, on the display, a channel scroll bar and a channel indicator configured to move along the channel scroll bar in response to the continual channel-up command or the continual channel-down command, and display channel information of the at least one preferred channel, at a position of the channel scroll bar, the position corresponding to the at least one preferred channel.