Thin LCD-LED TVs are appealing because they're easy to find space for and are aesthetically pleasing. To stay slim, most thin TVs, like Samsung's The Frame pictured above, use edge-lit backlights. But ...

If your TV is full of smudges, fingerprints, or dust, don't reach for that window cleaner. Instead, use items you already own, such as a soft cloth dampened with distilled water. Unlike other surfaces ...