To clean a smart TV screen safely, unplug the TV, use a dry microfiber cloth first, and if needed slightly dampen the cloth with water (never the screen) and wipe very gently.

Safe step‑by‑step method

  1. Turn off and unplug
    • Unplug the TV before cleaning to avoid any risk of shock and to see smudges more clearly on a dark screen.
  1. Start with dry dusting
    • Use a soft microfiber or other lint‑free cloth to gently wipe the screen in straight lines (up‑down or side‑to‑side).
 * Light pressure only; modern LED/OLED screens are fragile and can be damaged if you press too hard.
  1. For fingerprints and smudges
    • If marks remain, very lightly dampen a microfiber cloth with clean or distilled water; do not spray water or cleaner directly on the screen.
 * Wipe gently, then immediately go over the area with a second dry microfiber cloth to remove leftover moisture and reduce streaks.
  1. Let it dry fully
    • Allow the screen to air‑dry completely before plugging the TV back in and turning it on.

What to avoid

  • Avoid paper towels, tissues, rough cloths, or sponges, as they can scratch the coating on flat‑panel screens.
  • Avoid alcohol, ammonia glass cleaners, multi‑surface sprays, or generic household wipes unless your TV manufacturer explicitly approves a specific screen cleaner.
  • Never spray liquid directly on the TV; liquid running into the bezel can cause failure, fire, or electric shock.

Quick “body” and bezel clean

  • For the frame and stand, use a slightly damp microfiber cloth and then dry it with another cloth.
  • Dust vents and ports gently with a dry cloth, soft brush, or low‑power vacuum/air to help cooling and reduce noise over time.

Forum‑style pro tips

  • Many home theater users report best results using two cloths: one barely damp for cleaning and one completely dry for buffing streaks.
  • Some manufacturer support pages emphasize using only water and a microfiber cloth unless the brand sells its own approved cleaner, so checking your model’s manual or support site is wise.

TL;DR: Unplug TV, use a dry microfiber cloth first, only use a slightly damp microfiber cloth with water if needed, never spray liquid on the screen, and avoid harsh cleaners or paper products.

Information gathered from public forums or data available on the internet and portrayed here.