Just checked a few, but if everything is true, nearly 300 shows have bad imdb ids
for example
https://www.tvmaze.com/shows/1426/iris
current:
https://www.imdb.com/title/tt0280778/
should have
https://www.imdb.com/title/tt0432660/
https://www.tvmaze.com/shows/1648/fallen
https://www.imdb.com/title/tt0775362/
should have
https://www.imdb.com/title/tt0838800/