[DanCooper]

I've used the bulk-renamer with movies successfully, but it looks like some things that might be helpful for TV shows are not available.

Is there any way to use it only on just marked shows or selected shows or a particular source? This probably could apply to movies as well.

The Bulk Renamer is always based on current list filters. If you filter by Marked, the Bulk Renamer lists also only marked movies/tv shows. Maybe i can change that a little bit and add also Selected like in Custom Scraper.

Also, is it possible to append the absolute episode number of a show at the end? For instance, instead of ShowName.SXXEYY.EpTitle, you would have ShowName.SXXEYY.EpTitle - (ZZZ).mp4.

No, that's not possible. This value is not always known. TVDB has informations about absolue or DVD numbering and that will not be saved in database.