KDL-46W4000 My also showed after the expiry of the warranty (fits it all together) on a regular basis from the screen when you turn away a few centimeters a narrow vertical red stripes, each time disappeared fortunately today after about 30 minutes of operation ...
Through Internet research, I finally found out that at least the Sony remote control RM-EDO11 and RM EDO12 no longer function without the help of the consumer often after the warranty / guarantee neat because of the rubbery form panel, which rests on the board (presumably through the regular control applied pressure) well below the most depressed keys first on this board towards an oleaginous liquid emerges, which prevents the function.
Unfortunately, I was the original remote control does not open without damaging the silver-colored side panels, but find that you actually only worked once again, if you have the oily liquid from the board and the form panel removed carefully - but only until back enough of this oily liquid has leaked ...
Late January / early February 2013 I have then have it sent via eBay RepData my second remote control Sony RM-EDO11 that just looks exactly like the first. Therefore, I assume that I have received a second original remote control here. Meanwhile, I have again the same failure - the same theater we go again!
Now I have to worry whether this is a plasticizer or anything else, and I have also ordered a second RepData original remote control not praise just because these few months has only 20 so working as it should!
Actually, I might have expected but that Sony has this production error now parked? If this time I do not get free replacement, I'll probably barely even set a Sony television.
PS: I still have a good old and formerly long and heavily used Saba-HiFi Receiver. Meanwhile, over 30 years old and never opened or replacement remote control still works as flawlessly as the receiver. This deserves to be called production quality!