My tv pictures are really really dark on most tv shows but the commercials seem to be fine - we have tried using the menu to brighten the picture but nothing seem to work - this tv is less than 2 years old - any suggestions?
You didn't say if you are receiving an off air picture or cable or satellite. The reason the commercials look good is because the local station (or source) transmits them "in the clear", that is, without any enhancements to the video signal. Network programing or local newscasts are sent through a device which inserts a reference signal in what's called the "vertical interval". You may have seen this as a series of flashing dots or pulses at the very top of the picture. There's a lot of information packed into the VITS (Vertcal Interval Test Signal). One of the lines contains a reference pulse for video which is set at a certain level. Your TV sees that level and automatically adjusts its circuitry accordingly. What I suspect is that your set is out of calibration and is pushing down the video signal because it is not "seeing" the level properly. A video alignment should correct this and can be done by a good repair facility. Hope this helps.
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how about in the menu button you can not get an adjustment in brightness control. if the display in the screen is too dark either in any channel or even watching a movie from an input source like dvd player, then i may say that the picture tube need now replacement.
In many many cases this is an indication of a failing picture tube. The gun assembly in the neck of the picture tube is shorting. There is a fix, but this is surely last resort and the final cure may not provide a fix. Picture tube rejuvenation is not always successful. I would certainly opt for a new TV. Thanks for asking, and show a few hands of support!
Go into the tv menu and select the Preferences menu and set your picutre preference from Theater to Normal. The TV is currently in Theater mode, wich is for viewing with no lights on in the room. Switching it to normal lightens the pictue a lot.
Most PS2 games are dark and auto brightness controls will casue your LCD tv to brighten up automatically in response the dark video coming from PS2 games. I suggest you get into the menu settings of your TV and find a setting that will shut off the auto picture controls.