I know that now infuse can customize local artwork for TVshow，when they are organized into seasonal folders.
However, many TVshow only have one season. To streamline the process, I haven’t categorized them into season folders and I utilize the smart folder feature. Yet, currently, they are unable to implement custom artwork..
I hope this function can be added in future updates, because the tmdb data is really chaotic, and posters, stills and other works of art are edited and replaced almost every day. I just want the version I like.