Samsung UN55EH6030 E-Manual page 21

m Fine Tune
(analog channels only)
If the reception is clear, you do not have to fine tune the channel, as this is done
automatically during the search and store operation. If the signal is weak or
distorted, fine tune the channel manually.
® Select IFine Tune in the Channe_ menu,
_} Fine tuned channels that have been saved are marked with an asterisk "." on
the right-hand side of the channel number in the channel banner.
To reset the fine-tuning, select Reset.
®