I've also been looking at the same thing. I've moved from XBMC to LMCE recently, and its cetainly one think I miss TV Shows and Music Videos autotagging.
Downloaded the source of XBMC and Entertainer (another MediaCenter) and am looking a stripping some of the tagging code and adapting it to LMCE. Maybe I'll be able to come up with a script that we can hook into UpdateMedia so we can get auto tagging done.
My experience with XBMC tagging is very positive, 90% it gets it right - and also passes .nfo files, which is also nice. We could go a step further and even support libmusicbrainz too for audio tagging - the sky is the limit.
Lastly been able to manage this from the onscreen orbiter would also be a bonus, as my wife would not be interested bringing the WebAdmin - as it is, it intimidates her, and she's not interest in going in there when ever she upload her media from her laptop to the NAS drive.
Will post my further progress on this thread.. I'm really excited about this.. and if someone has worked on this before i'd love to chat in IRC and put our heads together to get the best possible experience in LMCE
Was just thinking this over - for those of us who acquire lots of video media, such as TV shows via, say, torrents - tagging manually all the time can be a pain (esp compared with ripping DVDs and mp3 which usually get tagged automatically)
How about if you could mark certain folders under videos as auto-tagging folders. Such that you might have a "movies" folder, that automatically tags any media placed in there as of Movie type, same for Music Videos, etc. Even subfolders that might tag Genres, perhaps Years, or Show, etc. True, it wouldn't be practical to set Titles and so on in this way. But the advantage would be that many people already have a folder structure like this, and merely by directing their BT client to download to the correct folder, you could set 3 or 4 of the general attribute types automatically.
This would assist in increasing the usage of the various other Sort modes other than Filename. I know its almost heresy here, but I have to confess that I do use Filename mode very regularly for this reason! The system could be generic so that there isn't a defined folder structure, you can simply mark the folder you want to have the autotagging feature and then list the attributes you want to set, and their values (perhaps this could be extended at some point to include some level of macro/regular exp)
This could either be integrated into UpdateMedia or be a separate function completely that accesses the database directly to stamp the attributes. The only things I can think of that would need to be addressed would be whether it overrides existing tags, or whether you would have to manually go to the admin console and tell it to override; whether it would look at existing files in a folder just configured for autotagging or only new files....