For when youtube-dl
reports that you can get a video in 1080p (or higher) but that you'll just get the video and no audio. You'll need ffmpeg
for the merge.
youtube-dl \
-f bestvideo[height=1080]+bestaudio \
--merge-output-format mkv \
--write-sub \
https://www.youtube.com/watch?v=foobar
Note that you can use >=
for the height.