Background TV Exposure Calculator
Television on with nobody watching — which affects early language exposure more than foreground viewing does, and which nobody counts.
Three hours a day of background television with a child in the room 60% of it is 12.6 hours a week and about 655 a year — and at a 25% reduction in adult speech that is roughly 229,000 words a year not spoken.
Background TV Exposure Calculator
Frequently asked
Is background TV actually harmful?
The consistent finding is that it reduces adult–child interaction rather than that it damages children directly. Since the amount adults talk to young children is the strongest single predictor of early language, that displacement is the mechanism worth caring about.
What if nobody is watching it?
That is precisely the situation the research is about. Unwatched television still reduces talk, still interrupts play, and is the easiest screen exposure in any household to remove because nobody wants it.
Does it matter at older ages?
The effect is largest under about three and diminishes with age, though background screens continue to affect homework and conversation. For older children the more relevant issue is interruption rather than language exposure.
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