Why does youtube have audio and videos mixed together?

when I google search for instance, Richard C. Hoagland, for videos, it lists plain audio shows also. I just want videos in my results.
Asked Aug 14, 2013
Youtube is all videos so you must mean a video where nothing really plays. Far as I know there is no filter, so you just have to go through what comes up.
Answered Aug 18, 2013

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