Well, now, I have to disagree here.
In some instances, the messenger IS the message.
You can find the same material presented by different sources, and in sampling this info from multiple sources you can sense a deep structure or underlying pattern to it.
However, the identity of the presenter is very important. We are humans learning from other humans. Personality often plays a large part in how the information is delivered and how it is received. Information doesn't live in a vacuum, it is tied to context. The presenter, especially if the presenter has a strong presence, is pretty much a big part of the experience, and we learn from experience, not disembodied information as in some sort of Platonic form.
My beliefs, of course.
