Changing channels
A common issue with this model is the control key board (the key input board that has the buttons on the cabinet of the TV).
This board can cause a lot of issue ,from changing channels by itself,to intermittent shut off, also sources cannot be switched or they switch by themselves.
The less common issues would be the remote eye or the main board.
If you give the full model number and the product code from your TV, I can give you the part numbers.
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