Need help in finding a simple computer for elderly novice grandparents.

Our in laws has been asking for help in finding a computer for their needs. They asked my daughter to help but she said she doesn’t want to get caught up in being called all times of the night for computer questions that are more about the user than the actual computer. Cannot blame her. When they lived with my sister in law we would have to explain how to use skype over and over every time they wanted to use it. Anyhow, my husband has agreed to help and I am praying there is a computer for dummies.
They still don’t even know how to really use the gps. I don’t think this computer thing is going to go well. But, I hope someone can guide us to an easy computer (not lap top) and maybe have some suggestions for how they can learn how to use the computer with step by step instructions they can pop in their tV. So it can play and tell them what to do.