To summarize, I bought a new Bolt about 2 years ago. Worked great for a year, then we noticed artifacting/pixelization on some channels. Had Comcast come out, test the line. All good. When their X1 cable box was hooked up to same line, it's crystal clear. Swap in the Tivo Bolt and the picture looks like crap. Called Tivo, they agreed to send me a refurbished (sigh...) Tivo Bolt 500GB for $54. Set it up, worked great for.. about a year. Then 2 weeks it started to show the same issues. Finally it degraded to the point where no channels would tune in AT ALL. So.. I called Tivo, complained, they offered the same $54 refurb deal. Just got the refurb and finished hooking it up (BTW, the Cable Card paired fine the first time with the stock HD, but after installing my WD Red 4TB using mfsr, it wouldn't pair until I ran C&DE (clear and delete everything) - is that expected?). So, it works fine NOW. My concern is that in about a year I'm gonna have the same thing happen. I've had 2 Bolts crap out, each about a year apart, with tuner issues. Is anyone else having this problem? Am I just very unlucky? Has Tivo quality control gone down the toilet? Meanwhile we have a Tivo HD that is about 10 years old and still has rock-solid tuners (but, it needs to have the motherboard chips heated up with a hair dryer to power it back up; that is another story...). Love the Tivo software, but really am not liking the lower quality hardware I've been seeing lately. What do others think?