People cannot be reading Charles Dickens or Henry James or Toni Morrison and at the same time watching television or a film on VCR, though some people may claim they can do that.
—J. Hillis Miller, On Literature (2002)
(A basic truth, but a hard one that bears repeating, especially if you teach any form of reading: reading, watching, and listening—or even the media consumption habits of protestantism, paganism, and fundamentalism—compete with each other.
ADDED: In case you need to see the above point, as opposed to reading it, here you go.)