Exercise 6.1 - Solution

Shared: the pictures from the arena and the natural sound of the crowd and games. Rules and scoring were agreed jointly in advance.
National: the commentary in each country's language, and mostly the studio presentation and local links.

Why it worked: the action carried the programme, not the dialogue. A viewer who did not follow the words could still see who was ahead, who fell in the water and when the Joker was played, while still hearing a familiar commentator who supported the local team.