Understanding High Definition
HD - Burn-In
If standard definition (4:3 aspect ratio) programming is constantly viewed on a wide-screen (16:9 aspect ratio) HDTV with sidebars activated over long periods of time, it may ruin the HDTV’s ability to display colors evenly across the screen. Similarly, constant viewing of 16:9 wide screen content on a 4:3 aspect ratio HDTV with letterboxing can cause the same problem.
Television manufacturers and Suddenlink recommend that sidebars be eliminated by using the zoom feature whenever possible. Since letterboxing is done by the content provider, letterboxed programs cannot always be completely zoomed to fill the screen. Consult the HDTV owner’s manual for details.