YouTube killed TV with pre-recorded content yes, but we are in the starting phases of live content killing pre-recorded content. In many peoples eyes (including industry leaders) live streaming is the next big thing for video consumption, so TV > YouTube > Live Streams.
Definitely agree with your comment regarding Twitch.
I think DLive is an interesting one. The potential for monetization and consistent earnings per stream is unlike any other platform, but there are a few challenges that must be overcome first. I think it's a must use platform for a streamer, but if we're being honest, platforms like Facebook, Twitch, and YouTube will beat it for engagement any day of the week.