Certain History.com title(s) now using own subdomain breaking youtube-dl

[phinneus1]

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• [* ] Bug report (encountered problems with youtube-dl)
• [* ] Site support request (request for adding support for a new site)
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If the purpose of this issue is a site support request please provide all kinds of example URLs support for which should be included (replace following example URLs by yours):

• root url: http://knightfall.history.com/
• Single video: http://knightfall.history.com/season-1/episode-1
• Playlist: na

Note that youtube-dl does not support sites dedicated to copyright infringement. In order for site support request to be accepted all provided example URLs should not violate any copyrights.

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Description of your issue, suggested solution and other information

History added this show to a subdomain hense breaking youtube-dl. Its possible they could add other new series in this format.

error reports unsupported url

[Ubadub]

I believe fixing this is as simple as changing what a valid URL is in the corresponding InfoExtractor file (in this case, aenetworks.py), correct? If so, I'd like to work on this issue