ytdl.el is an Emacs-based interface for youtube-dl, written in
emacs-lisp.

youtube-dl is a command-line program to download videos from
YouTube and a few more sites.  More information at
https://yt-dl.org.

youtube-dl supports many more sites: PeerTube, BBC, IMDB,
InternetVideoArchive (non-exhaustive list)

* Setup

Add "(require 'ytdl)" to your "init.el" file.

Further customization can be found in the documentation online.