[youtube] Extracting URL: sE4aIMVxqUU
[youtube] sE4aIMVxqUU: Downloading webpage
[youtube] sE4aIMVxqUU: Downloading ios player API JSON
[youtube] sE4aIMVxqUU: Downloading mweb player API JSON
[youtube] sE4aIMVxqUU: Downloading m3u8 information
[youtube] Downloading comment section API JSON
[youtube] Downloading ~59 comments
[youtube] Sorting comments by newest first
[youtube] Downloading comment API JSON page 1 (0/~59)
[youtube]     Downloading comment API JSON reply thread 1 (3/~59)
[youtube]     Downloading comment API JSON reply thread 2 (5/~59)
[youtube]     Downloading comment API JSON reply thread 3 (14/~59)
[youtube]     Downloading comment API JSON reply thread 4 (19/~59)
[youtube] Downloading comment API JSON page 2 (26/~59)
[youtube]     Downloading comment API JSON reply thread 1 (38/~59)
[youtube] Downloading comment API JSON page 3 (47/~59)
[youtube] Extracted 59 comments
[info] sE4aIMVxqUU: Downloading 1 format(s): 136+140
[info] Writing video metadata as JSON to: PMV_MLP_FIM_-_Cutie_Mark_Crusaders_-_Giddy_Up-Sir_Lukachu-20130105-youtube-1280x720-sE4aIMVxqUU.info.json