>>149004904 (OP)
>t. Brazilian
Depends on the show. If it's on streaming (Netflix, HBO Max etc.) the dub comes out at the same time as the original audio. If it's on cable, I'd say a few weeks? I know Rick and Morty is airing maybe two to three weeks after the original airing. As for the sloppy seconds, absolutely not. Dubbers (is that the word?) here are treated almost as celebrities, and there's a lot of respect for the "craft". I always like watching the dubbed version of a show after watching the original just to see how they adapted it.