I’m not a hardware person. Opening up a computer case to replace a component (or even to just use an air can and blow out the dust) tends to fill me with dread. Software–well, that’s a different story.
I mention this because the fan on our DirecTV DVR (Samsung DirecTivo SIR-S4080R) is starting to make the noise like a bearing is going out (I don’t think it is the drive, as usually they have more catastrophic problems). So, I would need to replace the fan. This, of course, is a hardware repair on a box long out of warranty. I’ve dropped an email to the satellite shop we use, but I’m curious if anyone here has done such a repair, and knows how hard it is to do?