noun
TV addict; child glued to the TV
Refers to a person, especially a child, who watches a lot of television. Often carries a slightly negative or concerned tone about excessive screen time.
うちの子はすっかりテレビっ子で、外で遊ばなくなった。
My child has become a total TV addict and no longer plays outside.
テレビっ子は視力が悪くなりやすいと言われる。
They say TV addicts tend to have worse eyesight.
Compound of テレビ (television) and っ子 (a suffix meaning 'child' or 'person characterized by something'). The suffix っ子 is a colloquial form of 子 (こ).