Is disobeying one's mother by bringing a television into the house considered undutifulness?

Question:
The questioner: What is the ruling on obeying one's mother in bringing a television into the house? And if I refuse to do so, is that considered undutifulness to the parents?

Answer:
No, refusing to do a harmful thing is dutifulness to your parents. If you refuse the harmful thing, you have been dutiful to your mother. But if you bring her the harmful thing, that is undutifulness on your part.