Speakers are notoriously a specific case where power actually does get used in standby, so it doesn't really contradict the original article. For instance, an old BBC News article (not the one published today that probably triggered this submission) listed "TV on standby" as using lots of power but was actually including various peripherals including powered on external speakers. I would expect turning those off and leaving the TV on would use almost no power. If, as parent comment says, even the TV/monitor is using significant power, then that's a lot more interesting.