https://www.pogdesign.co.uk/cat/

It’s a calendar so its purpose is mainly for you to see when an upcoming episodes air.

When you create an account (which is simple and doesn’t require any personal information or even an e-mail confirmation, if I recall correctly) you can subscribe to shows and mark episodes as watched.

I’ve been using it for years, it’s great.

I do have an issue with any group setting up places which discriminate based on gender.

That is your problem. Let people create the groups they want.