Sharing my purchased movies on friends Apple TV How do I share my purchased movies on Apple TV? I have purchased movies on my computer and would like to share with my grandchildren on Apple TV.  How do I do it?
I would set up family sharing. My wife and I share an account for all our apple purchases and it works great. You can have up to 6 people in the family group.

I would check if your son/daughter already have sharing set up and if so would ask them to add you.

I am making the assumption that you purchased your movies via iTunes and that your computer in a Mac.