Thank you. Let's see if this works. Here's how it was before:
<programme start="20230915073700 +0000" stop="20230915083700 +0000" channel="XXXXXX.us">
<category lang="en">Talk</category>
<category lang="en">Series</category>
<desc lang="en">Actor Ansel Elgort; actress Jane Levy.</desc>
<title lang="en">The Late Late Show With James Corden
Ansel Elgort: Jane Levy</title>
</programme>
You can see how, with IPTVBoss the NEXT_LINE functionality was just putting a line break after Corden and before Ansel. Talking to the developer, it was setup like that to specifically exclude the subtitle element. Evidently, many IPTV players won't recognize/show subtitles, but some IPTV players will observe a break like that to split the title into separate lines (and the rest will just default back to showing it all on one line). Of course, Channels recognizes and shows the subtitle element, and it does not recognize an ordinary line break in the xml instead consolidating both lines into a single line in the guide.
And here's how it is now, after I removed the exclusion of the subtitle element (and removed the injection of the subtitle element in the title element) and it is now working properly:
<programme start="20230915073700 +0000" stop="20230915083700 +0000" channel="XXXXXX.us">
<category lang="en">Talk</category>
<category lang="en">Series</category>
<desc lang="en">Actor Ansel Elgort; actress Jane Levy.</desc>
<sub-title lang="en">Ansel Elgort: Jane Levy</sub-title>
<title lang="en">The Late Late Show With James Corden</title>
</programme>
Thanks again for the help. Is the "three tick" convention a common thing for setting off code snippets in forums?