Back in 1954 our family lived in Mannheim. There was a program then that had the objective of providing "vacations" for some of the young German children of West Berlin to experience life outside that divided city. American military families could volunteer to host kids to live with them in their homes for a short period of time.
We invited a girl about my sister's age, Heidi, and a younger boy, Reinhardt, to our home and it worked out fine. The kids enjoyed their time with us, learned a bit of English, and learned something of our culture. It was enjoyable having them with us.
Reinhardt was fascinated by our TV- he had never seen TV before and he would sit spellbound in front of it watching the test pattern that German TV broadcast during off-hours. Of course it was a static pattern, just like that example but he watched it!