An article in Pediatrics finds that children in center-based child care programs watch less TV than those cared for in home-based programs. And centers with staff who have college degrees show children in their charge fewer hours of television.
At least in North Carolina, staff education is one of the factors that goes into state evaluation of child care centers, which affects the prices they can charge.
Plenty of evidence supports the idea that professional child care is good for children (for example), but the quality of care does matter. Apparently, TV time, which contributes to attention problems in children, is one source of stratification in that quality.
Family Inequality 