Replying to TV and sayings...

Has anyone ever noticed the influence that TV  has on what people say. Now i'm not talking about quoting stuff like what people did with borat or step brothers but how the actually act. For instance when south park came out a bunch of kids ,at least in my experiences, started making fun of jews then gingers when that episode came out. Or the office with that's what she said. Im not saying i don't like these saying in fact i love them but its just weird how much people are really impacted by a 30 minutes or so of a cartoon originally made from construction paper. Thoughts? Other examples?