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TV troubleshooting

Just Moved In

For the past couple weeks each time we turn on our tv, we have a variety of coloured lines and often a screeching noise.  None of the control buttons seem to work while this occurs. After several seconds, it automatically shuts down with the screen going black and the lights on the box go off.  It then usually comes back on and is proper the second time but sometimes it repeats the above several times before returning to normal.  Wondering what is going on?  


When you say it shuts down are you talking about the Optik box or the TV?

Is the Optik box connected to the TV with an HDMI cable?

If you turn your TV on without turning the Optik box on does it happen or do you get the green Optik screen?