Can't trust one's eyes: In addition to the problem of limited topics, there is the stations 'department-store approach. Production companies make programs, and the stations provide a "market place" for selling their shows. By providing selling space for the production companies but no guidance, they simply won't get shows on par with the Japanese "Silk Road" or "Yellow River."
題材的侷限，加上三家電視台以經營百貨公司的方式經營電視頻道，節目外包，電視台提供「賣場」，在沒有主導力下，只有各賣各的貨，做不出像日本拍攝的「絲路之旅」、「大黃河」之類的節目，也就理所當然了。