At some point, it appears that Plex fixed live HDHomerun TV viewing : r/PleX
Live TV & DVR (Set Up and Manage)
Plex Server 2021 - Setting Up Live TV and DVR thru Locast2Plex with settings that WORK
Live TV & DVR on the Raspberry Pi & HDhomerun & PLEX
Why does Plex DVR takes 2 HDHomeRun tuners to record 1 show? : r/PleX
plex and DVR : r/hdhomerun
Hdhomerun and Plex : r/PleX
Plex Live TV and DVR with HDHomerun
Justin Timberlake's Super Bowl LII Halftime Show at U.S. Bank Stadium
Rihanna - Apple Music Super Bowl LVII Halftime Show in Phoenix 02/09/2023 • CelebMafia
Issue: Plex using two HDhomerun tuners for single program. More detail in comments : r/PleX
Plex + HDhomerun = Superbowl LVII in every room : r/PleX