Keep posting roll and stick to your word. It's simple, but not easy. However you CAN do it.
If the TV is a huge trigger for you, why not turn the thing off for a while? Reinvest the time dip took you away from your kids and just focus on them.
I have been a night owl as long as I can remember, but have found myself hitting the hay earlier and getting up earlier. Each day I feel a little better.