@thor @k1tteh
You can specify what format you want downloaded via an ID. Livestreams have their own ID, different from a completed video. for example 138 is h264 1080p 30fps, 140 is aac audio only. You'd issue both those IDs to get a complete file. (youtube-dl -f 138+140 [yt link here])
But livestream, 96 is 1080p h264 video and audio together. (youtube-dl -f 96 [yt link here])