There appears to be some inconsistency with the numbering of anime episodes as I was adding episodes for One Piece, and I was wondering if there was a "correct" system?
For example, One Piece, the episodes appear to be numbered sequentially.
However, in Black Lagoon (the first season), the episodes are numbered #10x, and in Black Lagoon: The Second Barrage (the second season), they are also numbered the same. In Bleach, the episodes are numbered #[season][episode], e.g. #101 for season 1, episode 1, and #1624 for season 16, episode 24.
I only noticed the difference after adding some episodes, and would like to confirm the correct numbering before adding any further.