That dd_progid system is developed by Tribune Media (Gracenote) for their own system, thus it's not part of the standard XMLTV format.
You should ask the Plex developers to implement xmltv_ns or onscreen support, both are standard XMLTV formats and used by EVERYBODY except Plex.
The problem is which will prevent this from happening is, that that system references single shows by the first batch of numbers before the dot.
We are unable to reference shows, because we do not recognize shows, nor do we track shows nor do we store shows.
Without that reference number Plex probably wouldn't know what to do.
Those reference numbers are given by Tribune Media (Gracenote) for their own system, which we do not have access to.
Also the real episode numbers after the dot are calculated in a way that nobody understands.
So actually if Plex cares about their users, it's easier for them to implement a STANDARDIZED episode system into their software, than for us implementing a system that nobody uses and nobody knows how it works.
As far as I know, Plex has its own EPG data and they probably get it from Tribune Media (Gracenote), that's why they use that system.
Let them know that you want to use a different EPG and they should allow you to do that.
You should ask the Plex developers to implement xmltv_ns or onscreen support, both are standard XMLTV formats and used by EVERYBODY except Plex.
The problem is which will prevent this from happening is, that that system references single shows by the first batch of numbers before the dot.
We are unable to reference shows, because we do not recognize shows, nor do we track shows nor do we store shows.
Without that reference number Plex probably wouldn't know what to do.
Those reference numbers are given by Tribune Media (Gracenote) for their own system, which we do not have access to.
Also the real episode numbers after the dot are calculated in a way that nobody understands.
So actually if Plex cares about their users, it's easier for them to implement a STANDARDIZED episode system into their software, than for us implementing a system that nobody uses and nobody knows how it works.
As far as I know, Plex has its own EPG data and they probably get it from Tribune Media (Gracenote), that's why they use that system.
Let them know that you want to use a different EPG and they should allow you to do that.