Email notification of specific shows

[marauder 17]

Some of my users forget about shows. Looking for the ability for users to be able to track or follow a show. Then when new files/episodes are added to that show they get a notification or email. Right now the only option is a newsletter, but that sends out everything added, which many aren't interested in all the new files. If they could select the shows or genres they want updates about and the frequency it could help them follow along with shows or get them to login to watch a show they may have forgotten about.