Serializd uses the TMDb to populate it's database of TV shows. It allows you to rate individual episodes which is nice. You can see what other people are writing about the shows you watch, and follow your friends recommendations. The main problem with the site is the technical help. I noticed that there were episodes missing for a particular show, and I know they were on TMDb, so I asked them to update the database, or whatever they do to keep them in sync. No response. It's really not a bad site. It's got a lot of great features, but I guess they don't have the staff to look after the customers.