KEVIN: My favorite TV program is HEALER.

CORRECT: My favorite TV program is the "Healer".

EXPLANATION: Use the article "the" to specify the title of something.

KEVIN: Because it's sound is very fun and true to life.

CORRECT: It's very fun and it seems to be true to life story.

EXPLANATION: The word "because" is a conjunction (a word that is used to connect phrases or parts of a sentence) Therefore we should use this to connect phrases or sentences but not a starting word to a sentence. 

KEVIN:It's very impress so i like this TV program.

CORRECT: It impresses me a lot ,so I like this TV program.

KEVIN: HEALER is good person and  bully are attack and fight

CORRECT: The "healer" is a good person but he is being bullied so he/she fights back.

KEVIN: so police want to catch HEALER.

CORRECT: The police want to catch the "Healer".