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Hi,

Most of the newer TV's will automatically recognize a HDTV signal and make the correction internally.

Chances are that if the HDTV isn't activating, then you don't have a HDTV signal available. Without seeing how you have it connected or knowing what type of signal source you're using, it's difficult to be able to offer much more assistance.

Hope this helps,

Cubby

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Wiki User

17y ago

What else can I help you with?