You're forgetting that in those cases, beaming down was a result not of lack of video, but because of interference, or the classic "You have to see this for yourself" bit. More importantly, it made for a better show that way.
Interstellar video was common enough, but I'd question the importance of having video conferencing on top of their voice only communicators. I'd go further, but then I'd be showing how much time I've wasted thinking about this.
Interstellar video was common enough, but I'd question the importance of having video conferencing on top of their voice only communicators. I'd go further, but then I'd be showing how much time I've wasted thinking about this.
DS9>*, btw.