How I archive YouTube videos
The system I currently have down is this: Go through my subs and set it to notify me via email of new uploads. This makes a target channel easier to maintain it's item on archive.org.
First we gotta set up YouTube DL. We're using Linux/Mac for this, and sourcing the youtube-dl binary from the python repository Pip.
Setting up Youtube-dl
Do not install youtube-dl from Ubuntu/Apple repository. It's probably stale, and may lack key features we need, or buggy and not updated by the maintainer.
We'll use the python Pip repository instead. We'll also be assuming you're using Ubuntu.
$ sudo apt-get install python-pip atomicparsley
$ sudo -H pip install --upgrade pip youtube_dl
Using a config
Youtube-dl allows you to use a config to set default behavior. This is useful instead of aliasing in .bashrc because pipes or screen instances or trickle do not recognize aliases when running a command prepended with screen or trickle.
$ echo "t --console-title --no-overwrite --call-home --title --continue --write-info-json --write-description --write-thumbnail --write-annotations" > ~/.config/youtube-dl.conf
$ sudo -H pip install --upgrade youtube_dl
The upgrade schedule for the script is bi-weekly, so try to check for updates once every week or so, or daily if you're really thirsting for a fix to a problem you've reported. I've seen examples of multiple updates being pushed in a week.
Youtube-dl will use 100 percent of your bandwidth by default. To slow down a rip so you can do other things with your connection, use trickle to shape the traffic.
$ sudo apt-get install trickle
Example usage, downloading a channel with a maximum download bandwidth of 100kbps:
$ trickle -sd 100 youtube-dl [channel URL]