An image display apparatus for displaying an image produced by image signals on a display section includes: a plurality of input terminals for receiving each of the image signals supplied from a plurality of input sources; an input selector for selecting a predetermined input terminal from the plural input terminals; a judging section for determining whether the image signals have been inputted to the input terminal selected by the input selector; an operating section which receives requirement of search processing for determining whether the image signals have been inputted to each of the plural input terminals; an image signal correcting section which generates image signals for producing a source search screen indicating search status for each of the input source names corresponding to the input terminals; and a control section for displaying an image of the source search screen produced by the image signals at least on the display section in response to search processing executed through the operation section. The control section commands the input selector to sequentially select the input terminals when the search processing is required through the operation section, and commands the judging section to check the presence or absence of the image signals for each of the selected input terminals. The control section commands the image signal correcting section to add an indication that the image signals have not been inputted to any of the checked input terminals when the image signals have not been inputted thereto. The control section commands the image signal correcting section to close the source search screen when it is determined that the image signals have been inputted to any of the input terminals, and commands the display section to display an image produced by the image signals from the input terminal from which the image signals have been detected.