I'd like to add custom fields to a certain category.
A category only has the following fields:

Name:

Slug:

Parent:

Description:

Since I have a TV Series Site, I want to add some more fields, I want something like this, when I create a new category (Category=Series)

Name:

Artist:

Year:

Type:

Genre:

Summary:

Slug:

Parent:

Description:

And so on...

Any help please?
Thanks in advance.