Should you memorize your message points and your sound bites for TV interviews? Now, it's really hard to memorize. The other problem is when you're in front of a video camera, bright lights, perhaps you're feeling stress your memories not working as well as it normally does. So I'm a big believer, don't put all that pressure on yourself. Instead, make sure you have three message points, just a sentence for each one. And then a handful of sound bites for each one.
But remember, you can say in any order, in fact, if you have a message point that's dependent on order, or exact wording. By definition, that's a bad message point. So focus on your message points. Focus on your sound bites. Certainly if it's any kind of interview over the phone and there's no reporter looking at you with a camera. Don't worry about your memory at all.
Just stare at a piece of paper or a computer screen. don't memorize Make it easy but if it is, a television interview or a face to face interview, try to focus on your ideas. Your three main ideas, sprinkle sound bites throughout, but don't memorize it's really really hard. It's difficult. And that's when the the arms come up, the eyes float back and you look and feel and sound awkward when you realize you botched something, so don't try to get it perfect with memorization. Just focus on the ideas and use the simplest words that come to you.