The view from Voyager doesn't change very fast, so no need for video. NASA does stream live video from the ISS [1], not very exciting when they're on the dark side of the Earth (just a black image). No ad revenue though, I guess real life space isn't as interesting to as many people as people in a pawn shop reading from scripts.
[1] https://www.youtube.com/watch?v=2mSgb-gWjy0