A display apparatus comprising: a signal receiver configured to receive a video signal from an external first display apparatus, wherein the video signal comprises a plurality of image frames, the plurality of image frames being formed by first image frames and second image frames arranged alternately in time such that each nth image frame is a respective one of said first image frames, where n is a natural number not less than 2, wherein each of the first image frames includes a first on-screen-display, OSD, menu and each of the second image frames does not include the first OSD menu, wherein either the video signal further comprises metadata for notifying whether the image frame includes or does not include the first OSD menu, or the display apparatus is configured to receive a control signal through a control line from the external first display apparatus to notify whether the image frame includes or does not include the first OSD menu; a signal processor configured to process the video signal received by the signal receiver; a display configured to display an image based on the video signal processed by the signal processor; and a controller configured to control the signal processor; wherein the display apparatus is configured to: on the basis of the metadata or the control signal, discriminate the second image frames from the first image frames, and skip the first image frames, generate third image frames for replacing the skipped first image frames, wherein each third image frame is for replacing a respective skipped first image frame for display and is generated by interpolating two second image frames which are one image frame before and one image frame after the respective skipped first image frame, and not display an image based on the skipped first image frames of the video signal including the first OSD menu generated by the external first display apparatus, and display an image based on the generated third image frames and the second image frames. a signal receiver configured to receive a video signal from an external first display apparatus, wherein the video signal comprises a plurality of image frames, the plurality of image frames being formed by first image frames and second image frames arranged alternately in time such that each nth image frame is a respective one of said first image frames, where n is a natural number not less than 2, wherein each of the first image frames includes a first on-screen-display, OSD, menu and each of the second image frames does not include the first OSD menu, wherein either the video signal further comprises metadata for notifying whether the image frame includes or does not include the first OSD menu, or the display apparatus is configured to receive a control signal through a control line from the external first display apparatus to notify whether the image frame includes or does not include the first OSD menu; a signal processor configured to process the video signal received by the signal receiver; a display configured to display an image based on the video signal processed by the signal processor; and a controller configured to control the signal processor; wherein the display apparatus is configured to: on the basis of the metadata or the control signal, discriminate the second image frames from the first image frames, and skip the first image frames, generate third image frames for replacing the skipped first image frames, wherein each third image frame is for replacing a respective skipped first image frame for display and is generated by interpolating two second image frames which are one image frame before and one image frame after the respective skipped first image frame, and not display an image based on the skipped first image frames of the video signal including the first OSD menu generated by the external first display apparatus, and display an image based on the generated third image frames and the second image frames. on the basis of the metadata or the control signal, discriminate the second image frames from the first image frames, and skip the first image frames, generate third image frames for replacing the skipped first image frames, wherein each third image frame is for replacing a respective skipped first image frame for display and is generated by interpolating two second image frames which are one image frame before and one image frame after the respective skipped first image frame, and not display an image based on the skipped first image frames of the video signal including the first OSD menu generated by the external first display apparatus, and display an image based on the generated third image frames and the second image frames.