Different TV show, watch or join in?

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In order to attract more audiences we can see many different TV shows. Audiences can join in the show by phone or internet. Such as American Idol, I like it. I can surf more latest information by internet. My friend like this kind of show very much, he support them on site,by phone and attend the activities. If I asked some detailed about show he could the detailed. Do you like to join in TV show? Or just like to watch?