First, it's just nice to have it on in the background while I work on comics - I like having the company of other 'shut-ins' immersed in a creative project.
It's also really inspiring to hear Tim Gunn's advice. When I'm getting lost in a piece now, I invoke Tim's voice in my head saying, "Make it work! Go go go! Just FINISH it!"
I also find it helpful to see the traps that some of the designers fall into, like getting overly obsessed with details that no one will see (Daniel Franco), as well as the skills that help others succeed, like time management (Chloe Dao).