Where is the tvshow.nfo file getting data from?

[Deihmos 169]

I turned off all metadata lookups for recordings because they’re usually inaccurate. I’ve noticed that the tvshow.nfo files still contain random data for shows that don’t match, so I’m wondering where this information is coming from with metadata disabled. For example, Zap2it no longer exists, and Cuomo Prime Time was canceled years ago. The guide data appears to be correct, and the posters are correct.  Basically, the files are filled with unrelated data that doesn’t match what was actually recorded. Shouldn't this data come from the guide?

 

<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<tvshow>
  <uniqueid type="gracenote">22804235</uniqueid>
  <uniqueid type="zap2it">EP04428600</uniqueid>
  <uniqueid type="tvdb">353302</uniqueid>
  <uniqueid type="imdb">tt7317360</uniqueid>
  <uniqueid type="official website">https://www.cnn.com/shows/cuomo-prime-time</uniqueid>
  <title>Cuomo</title>
</tvshow>

<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<tvshow>
  <uniqueid type="gracenote">31148748</uniqueid>
  <uniqueid type="zap2it">EP06033210</uniqueid>
  <uniqueid type="tvdb">403170</uniqueid>
  <uniqueid type="eidr">10.5240/AA94-1FC4-BFBF-6394-6460-8</uniqueid>
  <uniqueid type="imdb">tt14681596</uniqueid>
  <uniqueid type="official website">https://www.amazon.com/dp/B0CYFLCXSQ</uniqueid>
  <uniqueid type="tmdb">125909</uniqueid>
  <uniqueid type="tv maze">55415</uniqueid>
  <uniqueid type="wikidata">Q125988942</uniqueid>
  <uniqueid type="wikipedia">Batman:_Caped_Crusader</uniqueid>
  <title>Batya</title>
</tvshow>

<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<tvshow>
  <uniqueid type="gracenote">28133725</uniqueid>
  <uniqueid type="zap2it">EP05264281</uniqueid>
  <uniqueid type="tvdb">74281</uniqueid>
  <uniqueid type="fan site">https://www.comedy.co.uk/tv/hignfy/</uniqueid>
  <uniqueid type="imdb">tt0098820</uniqueid>
  <uniqueid type="official website">https://www.bbc.co.uk/programmes/b006mkw3</uniqueid>
  <uniqueid type="tmdb">797</uniqueid>
  <uniqueid type="x (twitter)">haveigotnews</uniqueid>
  <title>Have I Got News For You</title>
  <mpaa>M 15+</mpaa>
</tvshow>

Edited 1 hour ago by Deihmos