While you are present I don't believe that grandparents have the right to discipline your children. When you are there, the discipline should ALWAYS come from you. When you are not present I think it is okay, but they should always discipline in the same way that you do.
If you don't spank your child, they have absolutely no right under any circumstances to spank your child. Your father is in the wrong here. Yes it is his house, but this does not mean he can discipline your son, especially if you have told him not to.
It is okay for him to say he does not want your son to touch the TV, but from there it should be up to you to make sure he doesn't. Since it sounds like you are going to be living with your parents for a while, it may be worth sitting down with them and having a talk about what you all expect from each other.
I lived with my parents and yes they did spank my kids and I said nothing about it because they also babysat the kids and they needed to know that they had to follow their house rules and to mind them when I was not there. I do not think a 10 month old should be spanked though. They are not old enough to understand anything at that age.
Maybe a firm no and a little tap on the hand but nothing more than that. Even though you do not spank it is your parents house and you need to teach your kids what they can and can not do. I would sit and talk to your dad about house rules and how you feel about him spanking your child.
I'm sure he will say the same thing I say all the time ( that's what is wrong with kids today ) because it's true.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.