I also have the TV hooked up to a new surge protector, and this was the case for the wrong plug and the right plug. I was contemplating plugging the TV into a wall outlet instead, but I don't know if that's the best idea...
Also, I called Samsung. There were some doubts from some of the reps I spoke with, I think, about whether or not what I am describing above really indicates a capacitor issue (which, as you may know, they are obligated to fix for free for TVs manufactured before Dec. 31st, 2008). Because of this I'm worried that when the service technician comes, he'll discover the problems I've been experiencing have nothing to do with the capacitor and I'll be charged for the visit.
What do you think? Do the visual glitches above indicate a capacitor issue? One Samsung rep told me that the capacitor is essentially the part that powers on and off the TV. Thus, when you hear clicking (one of the symptoms listed on Samsung's website), that's the capacitor repeatedly trying to turn the TV on. This is also why the other symptoms include the TV cycling on and off, taking a long time to power on, etc.
I don't have those symptoms -- I guess the TV takes a long time to turn on, but it's always done that, or so it seems. I can't really tell if there has been a difference. The TV itself doesn't cycle on and off, but the image does occasionally disappear as part of the visual glitches I described above. For instance, the TV image will suddenly vanish, leaving me with a black screen, then it will restore the image in a moment, but with a weird, jumpy line at the top of my TV. Does this sound like something that could be traced back to the capacitor?