So it's very much present as inner culture but not much an influence big mainstream productions (tv shows, movies) that we see as exports, is that right ?

As iterateoften points out, the TV shows are mainly tied to US holidays, or at least how those holidays are celebrated in the US. This also makes Peanuts merchandise tied to those holidays very popular.

Halloween, Thanksgiving, Christmas are the major ones. I think New Year and Easter were added at some point but not as well known.

Having said that, it makes sense that those shows wouldn't translate as well to a non-US audience.

I think it depends where you live. Peanuts seems to have fairly large presence in Taiwan and Japan--it's currently owned by Sony. It's one of the tentpoles on Apple TV.

According to Wikipedia, as a franchise it's brings in more revenue than Star Trek or the Avengers.

Honestly, in my experience the original stuff largely disappeared. I vaguely remember watching some of it back in the early 90's, but never in school. The holiday specials would be on TV if you went looking for them, but that's about it.

Snoopy was more ensuring than Charlie Brown, but even that was more "cute cartoon" than anything to do with any message.

Edit: I see some sibling comments that it's making a comeback, though I've no idea if any of it is all that faithful to the original.

Charlie Brown had a lot of Christian messaging reflecting Schultz's devout beliefs, and I doubt any of that will show up in whatever Apple and Target and current schools are putting together.