I recently moved my V700 series 53" Sony CRT RPTV. It's about 4 years old. Now it has a very bad habit. Every time I hit the TV/Video button to change inputs the screen blanks and the TV "locks up". You can't turn it on, off, or anything else. It's just a blank screen. If you unplug it then plug it back in, it'll let you cycle to the next input. As long as you don't hit the TV/Video button again it will display TV and work normally. But as soon as you hit the TV/Video button, WHAM!, picture turns off. When you unplug the TV you can here the TV cut off. Other than that, there is no indication the TV is working when it "locks up"