my tv says it is time to replace lamp and reset lamp timer but tv looks fine any info on how to do this,also i need to take the screen off the front and clean the inside of the screen it has what looks like when some water drops are put on a piece of glass and then when you put another piece of glass on top of that and it squeezes the water,i have a line that looks like that on the left side of my screen from top to bottom.it is not under warranty and i am not taking it to a service shop.also the cooling fan stays on constantly