Advertisements Just wondering, how robust is the internal power supply on the 6-tuner Roamio Pro. My unit is still going strong since 2014, so 7 years! For maintenance reasons I've replaced the HD and Fan. I'm wondering if I should pick up a spare internal power supply before they are gone or hard to get? The price has been going up and up. Weeknees seems to be one of the only ones that have them, but who knows for how long, and, they are charging a $100. core charge if you don't return the old one. If no one has ever had an issue maybe not to worry?