I have the Mitsubishi remote and finally fouond the QV button and tried pressing it and 9 at the same time. Channel 03 is tilled locked.
I did come get a screen I'm not sure exactly how I got there but it ask for a code to unlock but I don't know what that would be either?
The cable people have hooked the cable box to the TV however you can not get any channels because the TV needs to be set on Channel 3 and it is Locked and nothing so far unlocks it. Except as I explained when I input the 4 zeros in when it finally came up and as for the Lock code then it actually brought up the picture and sound for channel 2 not Channel 3.
If you try to change the channel or turn the TV off then back on you still have nothing but talk and snow on the TV.
The cable guys tried everything they knew and could not unlock but suggested I get the mannual on line. However the mannual does not appear to be available. That is how I got to you.
Steve the cable people have the yellow, red and white cables plugged directlly into the back of the TV. I finally got it to where if when I get the screen to show Locked Channel 003 and I press the Mode Key till shows Lock Code ---- come up and input 0000 press Enter.
Then it shows Lock 03 and press Enter again and the picture come on if you then switch and use the cable remote and press Guide it shows the different channels you can move to the one you want press OK and it comes up, you can also press the up and down channel button and move between the channels and you can press the numbers like 242 and it will change to the channel. However when you turn the off you have to go throught this all over again to get back to the cable. Because apparently this is only a temporary unlock. There must be some code that unlocks the channel permanently.
Steve I tried pressing Input on the front of the TV util EXT came up but nothing happens.