So this is an interview Big Bang did in China, and they kinda make fun of their band name because Chinese people wouldn't be able to pronounce it right. For example Big 棒 (Big Stick)，Big 笨 (Big Idiot)-- because they all sound like Big Bang, and then ended with 大韓BB (Korea BB) because it's easier to say, and sounds like the name of female character in a Chinese variety show. (It's funny if you kinda understand it).
If you can understand Korean or Chinese, the interview is about their tour and success in MADE, and the rest of the video is everything else, and Big Bang's history.
If you want me to translate anything, just ask!