In this guide, we have discussed the steps on how to fix a Samsung TV turning off and on by itself. We have covered six different solutions, each with its own set of steps. 

We have also provided some additional information to keep in mind, such as the possibility of a problem with the TV's power supply or main board.

In addition to the above, here are some other things you can do to prevent your Samsung TV from turning off and on by itself:

• Make sure that the TV is properly ventilated.
• Avoid placing the TV in direct sunlight or near heat sources.
• Do not overload the power outlet that the TV is plugged into.
• Use a surge protector to protect the TV from power surges.
• Keep the TV's software up to date.

By following these tips, you can help to prevent your Samsung TV from turning off and on by itself.

Thank you for reading!