There's something I noticed and don't understand. So, mainly, I watch anime dubbed, and I've noticed that with different shows, even those dubbed by the same studio, sometimes the opening sequence will have the credits in English, sometimes the opening sequence will still have the credits in Japanese, but still with English subtitles for the opening song, and sometimes the opening sequence will have the credits in Japanese, but with no subtitles or only Japanese subtitles for the opening song. Why is this? Are the people at the dubbing studios drunk or something?