Of course, the home releases of anime programs often look better than the broadcast versions. Anime studios have more time to tweak their art, and they can also make some extra scratch on the Blu-ray.
[Image via GreenTea]
Previously, Kotaku showed comparisons between the disc releases and the TV originals. And for a while now, YouTube folks have been going further, obsessively comparing the differences. Some changes can seem like minutia, while others are anything but.
Note: These clips below might have spoilers in them. Also TV版 means "TV version", while BD版 means "Blu-ray version".
Attack on Titan
Wake Up, Girls!
JoJo's Bizarre Adventure
Tiger & Bunny
Puella Magi Madoka Magica
If you love a certain anime series, it might be worth buying the Blu-ray.