Basic Navigation

There are TWO GROUPS of Discussion Boards, MEDIA and SUPPORT.

Media - Movies, TV, Celebrity and General

Support - General, Website, API and Content Issues

From the TMDb homepage

https://www.themoviedb.org/

Media
Use the Lets Chat link to the right of the 2016 That's a Wrap link.
Also the Forums link in the far upper right of the page.
https://www.themoviedb.org/discuss

Support
Use the Support link in far upper right of page.
https://www.themoviedb.org/talk