Hello, I have a Hauppauge WinTV-dualHD USB tuner (model 1595) which I am using on my Rpi4 8-GB using LibreELEC 10.0, version 9.95.1 (Kodi 19.0 Linux Kernel 5.10.17).
The tuner is plugged direct into Raspi 4 USB 3.0 ports.
Both tuners worked out of the box after installing the LibreELEC software and the TVHeadEnd Server . I do have occasional glitches in audio and video in both live TV and the recordings it makes. (same as steveslim on LibreELEC 9.95.1 or 9.2.6)
I use quality external antenna. I tested this Hauppauge WinTV-dualHD USB tuner on Intel NUC with LibreELEC. On Intel NUC (LibreELEC 9.2.6 x86, same antenna) tuner works perfectly, without any video-audio glitches.
This tuner has glitches only on Rpi4. I think, it is driver for Rpi4 problem.
Do you have any ideas?