I notice you're looking for an HDTV activation code. Just to clarify—most modern HDTVs do not require "activation codes" to function. If you're seeing a screen asking for one, it's likely one of these situations:
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INFO + MENU + MUTE + POWER. Or MUTE + 1 + 8 + 2 + POWER.MENU on remote and TV simultaneously for 5 seconds, then enter 0000.DISPLAY + 5 + VOLUME DOWN + POWER.MENU + 2 + 5 + 8 + EXIT (quickly).Sometimes, "activation codes" refer to universal remote setup codes needed to control your HDTV. Here are some top codes for major brands: Samsung: 0060, 0812, 0702, 0178. Sony: 1100, 0000, 0011, 0810. Sanyo: 0154, 0088, 0107, 0146. Sharp: 0093, 0039, 0153, 0157. Sylvania: 0054, 0030, 0171, 0020. Troubleshooting Tips I notice you're looking for an HDTV activation code
How to Activate Your HDTV with an Activation Code Samsung: With TV off, press INFO + MENU + MUTE + POWER
Here is the interesting technical feature behind these codes: