So back in May, my Tivo Series 3 (not a TivoHD) started to go into a reboot loop. It finally got to the point that when I plugged it in, I'd hear a ticking noise but nothing else. Bought a replacement power supply from weaknees and was back in business. Fast forward to 2 days ago. I was watching the Tivo with no issues. Go to bed and wake up the next morning and my tivo was in a reboot loop again. I had to go to work so I just left it. I ordered a whole Tivo Series 3 to cannabalize for parts. My wife told me it was rebooting during the day but sometime last night it rebooted and came up. We watched it for at least 4 hours without issue. This morning I woke up and it was in a reboot loop. I unplugged it for about 3 hours until UPS got here with my spare Series 3. For kicks I plugged my tivo back in and it would only make the 'tick tick tick' noise... it'd no longer turn on. I swapped the known working power supply from the Series 3 unit I just bought, and now all is well again. My question is: Is there anything else I should be looking for in my tivo that might be killing power supplies? I know the weaknees one probably was a 'fixed' one from someone else and unfortunately only came with a 90 day warranty (and I was about double that when it failed). I'd probably have just ditched the unit by now but it has lifetime service so a new power supply to keep it going is still cost effective at this point. But another power supply dying might make me reconsider... at almost 100 bux a pop to replace the power supplies, its quickly digging its own grave.