The vast majority of the shows I watch I have found by searching for keywords I'm interested in, or actors who I enjoy watching, so I can come up with a pretty long list of shows I watched that were never suggested to me in one way or another.
The only way you could watch movies without it being the result of a suggestion would be if you had a random list of movies (preferably of all movies ever made) and picked at random in it. I think it's safe to assume you're not doing that, so you're being suggested movies.