1. I can learn a lot of lessons from the documentary. However, I don't want them to make viewers see the terrible accident.

2. It gives pleasure to us. I laughted a lot because of the star in the program. However, the program contains some filty languages.

3. I can learn Spanish efficiently with the educational program. However, as a beginner, it seems to be a little difficult to digest all of them.

4. I can have a good time with the action movie on TV. However, it covers miserable people too much.

5. I could taste the happy family on TV. However, it doesn't seem to show the conflicts in a family.

6. Children can learn many expressions in the anmimation program. However, it is not so good for them to see people smoking in the program.

(Would you check the errors in each passage, please?)

1. I can learn a lot of lessons from the documentary. However, I don't want them to make viewers see the terrible accident.

Looks good except for "them" -- who are they?

2. It gives pleasure to us. I laughted a lot because of the star in the program. However, the program contains some filty languages.
What is "It"? And watch the spelling -- laughed, filthy.

3. I can learn Spanish efficiently with the educational program. However, as a beginner, it seems to be a little difficult to digest all of them.
Again this looks good except for "them" -- who are they?

4. I can have a good time with the action movie on TV. However, it covers miserable people too much.
Only one action movie? Or do you mean "action movies" (deleting "the")? If you change that to plural, how will you have to change the second sentence?

5. I could taste the happy family on TV. However, it doesn't seem to show the conflicts in a family.
Taste? What do you mean here? I can't guess.

6. Children can learn many expressions in the anmimation program. However, it is not so good for them to see people smoking in the program.
Watch spelling -- animation. The rest is fine.

(Would you check the errors in each passage, please?)

1. I can learn a lot of lessons from the documentary. However, I don't want it to depict the terrible accident.

- Error: Change "them" to "it" since it refers to the documentary.

2. It gives pleasure to us. I laughed a lot because of the star in the program. However, the program contains some filthy language.
- Error: Change "filty" to "filthy" to correct the spelling.

3. I can learn Spanish efficiently with the educational program. However, as a beginner, it seems a little difficult to digest it all.
- Error: Change "digest all of them" to "digest it all" since it refers to the content of the program, not multiple items.

4. I can have a good time with the action movie on TV. However, it focuses too much on portraying miserable people.
- Error: Change "covers" to "focuses" to better convey the intended meaning.

5. I could experience the feeling of a happy family on TV. However, it doesn't seem to address conflicts within a family.
- Error: Change "show" to "address" to better capture the idea of conflicts being dealt with instead of simply being displayed.

6. Children can learn many expressions from the animated program. However, it's not good for them to see people smoking in the show.
- Error: Change "people smoking in the program" to "people smoking in the show" to maintain consistency in the terminology used.