Once again a burn-in question

i have read alot of posts but cant really come up with the RIGHT answer. I have recently purchase Signal cables and was wondering if there is a certain cd or types of music to break ( or not to break ) in with. If this matters i have kids that are home all day and will expect to watch a little TV. with the posts i have read most say 72+ hours of cont. music. Will switching to TV for a couple of hours do harm? and what should the volume be at, just onr more question does a dig. coax need a burn in time also? if so please assist.. thank you all so much for helping a guy trying to get the most out of his gear. ryan