Samsung UN32F6300 E-Manual page 80

Analog Screen Calibration
The dispIayed image may differ depending on the modet,
Analog pictures can become shaky and full of noise, If this happens, you can fine tune the signal
and/or reduce noise to clear up the picture,
Fine Tune
Screen Menu ) Broadcasting ) Channel Settings ) Fine Tune
Clear up shaky pictures. Fine tune the pictures until they are clear and then select Save or Close.
Select Reset to reset the Fine Tune operation. This option is only available for analog broadcasts.