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Hi JCM! The TU7000 features an auto-scan option when looking for channels which will automatically scan, detect, and add channels to your TV. You can view the signal strength for each digital channel and adjust the antenna accordingly for better signal. To view this information navigate to Settings > Support > Device Care > Self Diagnosis > Signal Information. Check out the following support article from Samsung for more information regarding channel scanning: https://www.samsung.com/us/support/answer/ANS00062206/ ^Tim
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