FileBot

Still learning this process to use script to automate tv series renaming, i use filebot over slickbeard due to quality of renaming. but at the moment not sure how to use in Newsbin as post unrar script to rename.

is it possible to use in newsbin as post script?

I don't know. But as long as the program you're using can call other programs on newly downloaded files things should be pretty straight forward. These glue-logic shell scripts might serve as a template: https://github.com/filebot/plugins/tree/master/bash