@theappdev said:
Images
If I hit TV Details and append to response and add images, for example, https://api.themoviedb.org/3/tv/{series_id}, I get nothing back.
If I do https://api.themoviedb.org/3/tv/{series_id}/images, I get back images.
I am unsure what I am doing wrong, but do I need to make two calls to get the images back?

When you use "&append_to_response=" for images you must also use "&include_image_language=" specifying languages of the images you want and use "null" for images without a language.
See note at the end of this page:
https://developer.themoviedb.org/docs/append-to-response
And also explanations from this page:
https://developer.themoviedb.org/docs/image-languages

Does this apply to videos as well because I am seeing the same thing?

Yes it does. The param for videos is include_video_language. We lost this info when we migrated API docs last year. I'll get it re-added.