An image displayer with a facilitated channel setting process, in which the channels are set based on a pre-stored channel information. The image displayer includes a channel information storing unit for storing the channel information, an OSD (On Screen Display) processing unit for displaying an OSD menu which is configured based on the channel information stored in the channel information storing unit, and a controlling unit for looking up menu items displayed in the OSD menu and updating the channel information stored in the channel information storing unit based on a changed channel information. According to the image displayer, since the channel setting based on the ATM (Auto Tuning Management) table is completed by simply selecting desired broadcasting channels in the OSD menu, the process of setting the channels can be simplified.