I have a Bose Lifestyle Surround System hooked to a Samsung DLP TV. Everything was working fine for a couple of months until lately the sound has been shutting off and coming back on intermittently. All the power stays on, just the speakers cut in and out. What is the likely problem here?

Is it cutting out on any specific source such as cable or is it all sources. Many times it can be a fluctuation in the signal sent from your cable or satellite feed. When this happens you may notice your display shift from 5.1 to 2.0.