[youtube] Extracting URL: l4hv2ShiK9Q
[youtube] l4hv2ShiK9Q: Downloading webpage
[youtube] l4hv2ShiK9Q: Downloading ios player API JSON
[youtube] l4hv2ShiK9Q: Downloading player 1f8742dc
[youtube] l4hv2ShiK9Q: Downloading m3u8 information
[youtube] Downloading comment section API JSON
[info] l4hv2ShiK9Q: Downloading 1 format(s): 136+140
[info] Writing video metadata as JSON to: Friendship_is_Witchcraft_-_Pinkie_s_Brew_Typography_Animation-ponymobile-20150330-youtube-1280x720-l4hv2ShiK9Q.info.json