In the world of legitimate streaming, new releases are tightly controlled. When a movie premieres in theaters or a new episode drops on Netflix, the only legal 1080p MP4 files available are behind paywalls and DRM protection.
Many universities and public media archives intentionally leave directories open for public access. For example, the Library of Congress or the Internet Archive might host directories of public domain films or educational videos. Searching for "index of" "1080p" "lecture" "mp4" can yield treasure troves of legal content.
Forces Google to include specific terms like "1080p" or a specific resolution. Tips for Better Results File Types Indexable by Google | Documentation
