Why many japanese tv programs got the japanese subtitle?

Question

because some words got different kanji?
but i watched and found that many of them are just hira and kata.
especially for game show.

Answer 1

Many Japanese TV programs have subtitles if the Japanese spoken in the program deviates from standard, accepted, modern Japanese (hyojun-go). Hyojun-go Japanese would be what you would hear news anchors speaking.

The type of tv program that immediately comes to mind that often use subtitles are game shows and what the Japanese call variety tv shows. These shows often rely heavily on the use of the latest most trendy way of speaking Japanese (slang), pet names, and the like for comedic effect. Since Japan has a very quick turnover when it comes to trends, the slang being used changes just as fast. Without the use of subtitles, even Japanese natives sometimes would not be able to grasp what is said just due to unfamiliarity with the most trendy/current slang.

Other uses for subtitles occur when a non-native speaker is using Japanese, or sometimes in historical dramas which use old/ancient Japanese. Again, it's to aid compprehension for when the spoken Japanese deviates from the standard hyojun-go Japanese.

Answer 2

Becuz you never know who's watching
ex.Japanese anime programs Naruto,Full Metal Alchemist,Fruit Basket,Rave Master,Bleach,etc.
P.S if you read this please help me with my other problem in my profile titled"if you have any patience please read and help me about a girl I like?" or search it.=)

Answer 3

becauze they dont understand their language n need to read lol