Samsung 8000 Series User Manual page 534

Green jack of Component on the TV.
When changing channels, the picture freezes or
is distorted or delayed.
If the TV is connected to a cable box, try
to reset the box. (Disconnect and then
reconnect the AC cord and wait until the
cable box reboots. It may take up to 20
minutes.)
Set the output resolution of the cable box to
1080i or 720p.