There are several things I can think of, although there are definitely more. One is the massive reduction of religiosity. Religion played a major role in politics and society before the revolution. Eastern Orthodox Christianity was the dominant religion, closely related to the monarchy, and influential in many ways. read more
You can watch Russian TV, buy Russian books, there are some Russian newspapers, there are (albeit rare) screenings of movies with Russian voice over, there are theatricals plays with Russian subtitles projected on the running line over the scene. read more
The first theatre in Israel was the Habima, which was founded in Russia in 1917, immigrated to Israel, and established theatre that was heavily influenced by Russian culture. read more