Television and Home Theater

my monitor was scratched by my daughter. ive been told the tube needs to be replaced but after many hours searching the net this is not feasable because of the high cost (from $1000 to $1700). the screen obviously has some kind of plastic coating on it because of the way its scratched. does anyone have any suggestions on polishing or maybe replacing the plastic?

My Tv keeps periodicaly turning itself off and then on again !!!! My retailer said it may be on a timer, I have checked and cleared that but it has done it again!!!! Any advice welcomed

I have a 55 inch sony rear projection purchased nov 2005, 14 months
new.. the problem is when watching it turns off and on every min. I
have gone through the troubleshooting section and set every thing to
default. timer..etc and no avail, tried unplugging it for a
day., same problem., sony states it needs servicing. not going there
just yet unless i can fix it.. maybe overheating, maybe lamp (no lamp
indicator flashing). somebody help me.. thanks gil