WD73732 TV-picture seems to have a "glow" or light shine especially when viewed at night. For example, faces show a glow on forehead, cheeks, nose. It is getting progressively worse. TheTV is only 4 ears old.

Press the TV menu button. If no menu appears the problem could be a bad tcon display board or backlight inverter board. Turn off the room light and check TV for backlight glow. If it has a glow then the problem can be a loose tcon connection or bad tcon board. Check connections.
Or it could be,
Possible TV Back-Light Inverter Board Issue:
To see if the back-light has gone out, turn the TV on. Turn the lights off and make the room dark. Shine a flashlight onto the screen at different angles. If you can see some of the picture then the back-light has gone out. (It should glow a slight grey if it’s working) To fix this you need a TV backlight inverter board. You can buy one online for a relatively low price. Usually the board will have a few bad capacitors on it. You could attempt to repair it yourself if you can identify which capacitor has gone bad. A capacitor kit for a TV board is ultra cheap. You are best off buying the backlight inverter board and installing it yourself. A back-light inverter board should be from $10 to $25 dollars depending on your TV model

I think that the unit is going into protective shutdown because it has detected an internal problem. I would suggest that you invest in a detailed repair estimate that will cost about $100-$150 depending upon your location. It might cost even less, especially if you take it in. You could also contact Zenith and see what they might say about this problem first before taking it in.

Main support number 1-877-993-6484

IF THE WATCH HAS LUMINOUS HANDS AND DIALS THEN THIS IS THE WAY TO ACTIVATE IT TO GLOW.YOU EITHER HAVE TO SHINE A FLASHLIGHT DIRECTLY ON THE WATCH FOR A BOUT A MINUTE OR PUT IT UNDER A BRIGHT LIGHT FOR ABOUT A MINUTE.IT SHOULD THEN GLOW BUT THIS ONLY LAST FOR ABOUT MAYBE AN HOUR.

Hello, make sure that the lamp covers are replaced properly. You might want to remove them again and reinstall them again, there are switches that have to be closed before the set will operate ....tks

I havent seen your pictures but your veiw finder shows more than your camers sees so next time dont zoom so close to the subject
make your own pretend boarder to compensate.

Hello! Dan Busa with Dish Networks customer service department. This sounds like it may be a signal issue, I would make sure the cabling is tight and in good condition. You also want to enable your inactivity standby having it disabled will only make this worse. If everything seems ok you may need a technician.

That's not a good sign. There are a number of parts in any TV that can put on quite a show when they fail. In many Zenith models, picture tube failure can cause this when high voltage gets back onto the circuit board. The glow you mentioned, if it was on the screen, is one symptom of such a failure.

Having this repaired is uneconomical. Labor alone may be $60 or more (I'm sure it will be...our shop charged that for a complex repair when I left the service business almost 10 years ago) and then you need parts. The repair bill could easily approach replacement cost, especially if it is the picture tube (and then it would cost more to repair than replace).

Use this as an excuse to treat yourself to a new TV. There's almost always a sale somewhere on small flat-screen models.

Gave up trying to reset the tv.
Called the tech guys.....they confirmed that the tv was faulty, and exchanged the tv set.

Take a flashlight with you and shine it on what you want to focus. Press the shutter half-way, shut off the flashlight and press the rest of the way.

yes it can be down to signal degradation especially via scart lead, make sure you use a decent scart if you buy an expensive one you can tell the difference. Run a cable from your sky digibox direct to your tv to see if the picture improves.