When a video premieres, it will go "live" at a certain time - but it's an uploaded video. It's like a show on TV that you are waiting to watch - but for YouTube videos. It has a live chat while the video is premiering - like in live streams. I liked that feature - it creates an atmosphere like in live streams but without actually live streaming! From now on, my future CR uploads will follow the premire format! BTW, last time i messed up when it comes to premiering (i didn't schedule or be present while premiering), but that will be fixed from next  CR upload - stay tuned, because i can be quite active when it comes to comments and replies! So i'll be there with you discussing the video or CR in general