I just converted over to Sonarr and am in the process of updating my shows to a newer naming scheme, one that includes quality and release group in the actual file name. To that end, I’m using the following string for standard episode renaming: “{Series Title} - S{season:00}E{episode:00} - {Episode Title} - [{Quality Full}] [{Release Group}]” and in episodes with a dash in the episode title, Sonarr wants to make the release group whatever the first word is after the dash.
For example, “Season 24/The Simpsons - S24E03 - Adventures in Baby-Getting.mp4” becomes “Season 24/The Simpsons - S24E03 - Adventures in Baby-Getting - [SDTV] [Getting].mp4”. I would have expected this to be “Season 24/The Simpsons - S24E03 - Adventures in Baby-Getting - [SDTV] [Sonarr].mp4” instead.