I have a Phillips big screen tv. Sometimes it will not turn off, and i have to unplug. And often i can not turn channel or adjust the volume. When this happens, I have to unplug for at least 15 minutes. Sometimes this do not work. Sometimes if freezes on one channel or on volume control. Im not sure if its the timer, but i turned the timer and sleep off and it still acts up. While somedays it works perfectly fine for 8 or 9 hours.

Already Tried:
turning sleep and timer off