New episode notification

Notifications only apply to the Watchlist, and are only sent on the date of release (if that date was added to the title in time for notifications to be sent).

From 

https://help.imdb.com/article/imdb/general-information/manage-your-email-subscriptions-and-watchlist-notifications/GFSALECHJBMR4U5B?ref_=helpsrall#

UnderIMDb Subscription Emails and Newsletters,check that you’ve selectedWatchlisted Shows on Tonight(for shows) and/orWatchlisted Movies in Wide Release(for movies).

Make sure Do not send me informational emails is not checked (under IMDb Informational Emails).

For other information about lists:

Updated 17-December-2021 This page provides answers to the most common questions we often hear about regarding lists on IMDb - if your question isn't answered here, head on over to our community platform Sprinklr where another user sho ... Read more.