I have the HDHR-US (dual) tuner and it still works fine but it isn’t supported by Plex DVR (and it doesn’t work – I tried).
These older models didn’t have DLNA or UPnP capability (which I assume Plex needs?) but I doubt I’ll spend $100+ to get a newer model just for DVR integration with Plex.
Still, it’s a nice feature for those that have a newer HDHomeRun.
I just got a dual myself, to add to my prime, and, I’m dissapointed it isn’t working in plex…
If you have a Dual contact SiliconDust they offer a hardware upgrade price of $59 for Connect or I believe $109 for Extend, plus $10 Shipping. I just sent an email to their sales email account.
Update
The Dual has been integrated for around a month now!!!
Plex DVR found the Dual and used it for setup, but now it can’t be found by Plex and a new scan for devices does not find it. What happened?
Update: now it works, I rebooted a computer on the network that had some network issue.