I never understood the appeal until I started watching Handmade Hero(https://handmadehero.org/). I had always wanted to learn about C, but if you don't have an idea of your own, it can be difficult to put what you learn into practice. Casey Muratori did a great job of explaining why he was doing things certain ways and went even deeper to explain the underlying concepts.

I don't see very many live broadcasts on livecoding.tv at the moment, at least none that interest me, but I think I'll be checking back somewhat frequently to see if I find something worthwhile to me.