Do the Blu-ray episodes replace the TV episodes on the Internet once they've been released? Because of God Eater, I got to know that the episodes in the Blu-ray often differ from the episodes recorded on TV. As the Blu-ray is being released after the series has been completed, the producers often modify the animation of certain scenes.
Here's an example where you're able to see these modifications.
But are there any legal streaming sites that sometimes or commonly replace the TV version of an anime with the improved Blu-ray version once the latter one becomes available? How does especially Netflix, who's recently been publishing a lot of older animes (that are not currently airing on TV), handle this? Does it just publish the Blu-ray version or does Netflix stick with the TV version?
Usually, it depends on whether the websites own the rights of the anime's Blu-ray version, because the TV and Blu-ray versions act as separate entities for commercial rights.