Hdhomerun prime on Verizon FiOS. Channels DVR installed on Synology ds1618+. Client is firestick 4k.
Every now and again (more than 2 or 3 times per show), the progress bar pops up, the video feed (live TV) pauses for a split second then resumes.
I don't seem to have any similar issues when using Hulu or prime video. I will send diagnostics and post back.