I imagine a lot of the users on here are foreigners that live in Korea. We need lessons for the various tasks that we do here. Say going to a barbershop, getting meat from the butcher shop, setting up a bank account.
I have seen videos like these, but the problem is they tend to be too simplistic. So the video, instead of a dialogue, should give a bunch of different options that Korean people would generally say, and then a couple of ways we could answer back. This is a problem with any websites Korean videos from what I've seen. It's actually pretty useless to say "I want a haircut please" in Korean. You can easily mime that or even use Konglish.
I was in a shoe store and realized that I didn't understand the majority of what the saleswoman was saying to me when I was trying on shoes, because she wasn't following the scripts I've learned. A lot of scenarios on here where we're supposed to be talking to our Korean boss or friend simply wouldn't happen. If our korean is at the level where such a video would be usesful, our korean boss would just speak english, or he would get someone who could to talk to us.
Service scenario videos are what's needed. If we can't deal with even these kind of simple conversations, than the chance of us having a Korean friend that will speak to us in Korean is slim to none!