Hey there,
I'm sorry that you can't get to sleep :/ Why is it that your parents will be mad at you for asking them to turn down the tv at 3 in the morning?
And if this is a regular thing, and you don't see it getting any better, maybe you could invest in some earbuds that could, if not get rid of the noise, reduce it.
But for now, I guess you could try distracting yourself with other things or maybe just read a book till you fall asleep :/
PM me if you need anything!
Kyra