I have a Roamio Pro which I was attempting to upgrade with a single 6TB drive to expand storage capacity. I received the drive from Weaknees, and installation was very simple and was back up and running within 20 minutes. When I went into system info after the installation, the capacity was listed only 251 HD hours, and not the 960 hours advertised on the Weaknees website. I contacted Weaknees and they replaced the drive with no issues. I installed the new drive in the Roamio pro, and have the exact same issue. Now I think its not the drives but might be something with the TIVO unit. Has anyone else had an issue similar to this, or have any thoughts as to what might be causing this issue?