Renaming files already tagged using a different template

Okay so i was testing tvrename and tried different filename templates. Now what i want to do is, rename all the shows using a common template for all the shows.
Currently all my shows have different naming styles. I want to rename the shows that have already been tagged once using tvrename but with a different template

Does anyone know how to do this?

I have done that before just point incoming folder to all your outgoing folders. then run a scan since they are already put away it does not move and only renames. Just check what it is renaming when you do before you hit apply. Any single word shows can get renamed wrong pretty easily. ex. 24 or house seems to happen a lot.

Change the scan folders back afterwords. If you have several drives this can take hours to run.