What is the "bare minimum" amount of TMNT experience required to truly be a fan?

[pannoni1]

So you walk on the street and ask someone in their 20s/30s and ask them, "Do you remember the TMNT?" You may hear stuff like "I saw the first movie", or I "had all four turtle action figures". Unfortunately, this is just a small drop in the bucket compared to what's out there, and is really just a person with a slight preference for TMNT. But to my knowledge, this is my opinion on the bare minimum to be just a casual TMNT fan:

-You've watched at least two of the four movies at least once.
-You've read at least one comic book.
-You've played at least one video game.
-You watched the cartoon (OT or 2k3) on Saturday mornings for at least a few months, plus you own at least one VHS tape/DVD of any of these cartoons.
-You owned at least five action figures.

Basically this shows that the person has enough experience to relate to the "core five" (soon to be six if Nick is a success) different universes of TMNT: Comics, Cartoons, Movies, Toys, and Video Games, even if they know very little about each.

Now, of course a die-hard, fan-club caliber is much more debatable. Basically, you need to either be a strong specialist in one of the five "majors" listed above, or in addition to having a satisfactory understanding of each universe, also have a good special ability to the franchise, such as being a good fanfic person or collecting more obscure stuff. But basically, the more you know/experience, the more of a fan you are, and with new stuff coming out, there is always room for growth!

Please feel free to share your opinions/definitions on what separates a true fan from a casual to just an observer.