If you prefer to own the content:

Billions is a dialogue-driven show, but the sound design is critically underrated. The clinking of ice in a bourbon glass, the roar of a Ferrari engine, and the anxious tapping of keyboards on a trading floor are all vital.

Because your files are MP4, you can embed metadata (cover art, actors, plot summaries) directly into the file using a program like Subler or MP3tag. This is useful if you transfer files via USB without a media server.