The Stand is one of my favorite King books (the re-issue is better than the original). And the recent TV series was also very good (this has been done on TV about 3 times).
The Stand is actually one of my favorite King books as well, the expanded edition is great BUT the TV adaptations of it were big ole steaming mugs of hot trash. The original one, filmed in the early 90s, has a star studded cat, but even then they took huge liberties with the story and the new one, was well, so chocked full of social justice subliminal messages I couldn't even watch it past the second episode.
There has only been one movie that I have ever seen that actually stayed true to the source material, and that was the Grapes Of Wrath with Henry Fonda, and even then, there are several scenes that were truncated to get it to fit in a watchable run time.
My wife is a huge Harry Potter fan, so naturally, I have seen the entire series of movies, multiple times over with her, but it wasn't until we visited The Wizarding World at Universal Orlando, did I have any interest in reading the books. The world there was so immersive, it pushed me to look beyond the books. I devoured those books over about a month, and they are actually really well written stories, but now, I can't stand watching the movies, because the directors left out entire characters and plot lines, made other characters do things that they would never had in the books, etc. But that seems to be the way it goes for every movie that grew out of a book. Almost every cult classic movie mentioned here came from a book whose story is 100 times better, but due to money and attention spans, is cut down to fit in a specific box.