When does something become classic?

[LadyBuggington]

Do you think the title classic when referring to films, books, game etc. comes with age, with great content or a combination of both?

What do you consider among your personal classics and why?  

[Ravenmichiru]

There are so many factors that go into something becoming classic. Sometime you really have to wonder how it became a "classic". A lot of it has to do with the passage of time though.

For me there are a lot of things I consider classic that no one else remembers or even likes, so I'm not really the best person to answer this question.  

[Avane Anime]

I think it's a combination of factors. It can't be just time or there'd never be an "instant classic" I'll try to come up with something more in depth later.  

[Sirius Hot-Pink]

I agree. It is a matter of multiple factors. In my opinion, Doctor Who is a classic show. After all, it has been around for like 50 years.