Is our internal voice radio, TV or both?

All day long, as we walk around, that little voice keeps talking in our heads. Even with earbuds blasting, even when multitasking, that little voice keeps right on talking. For some of us, perhaps it’s strategy: “How can I get those kids to eat at least one vegetable a week?” For some of us it’s obsession: “How can I get her to love me as much as I love her?” For some of us it’s people-watching: “Why did that pretty girl with carrot-red hair wear red and purple today? Is she color-blind or passive-aggressive?” We are listening to what is effectively mental radio all day. When we go to sleep, the voice turns off, and dreams begin. Does our mental radio turn into mental television when we sleep? I WONDER. DO YOU?