Template:Television channels and stations established or disestablished in year category/doc

This is a documentation subpage for Template:Television channels and stations established or disestablished in year category.
It may contain usage information, categories and other content that is not part of the original template page.

This template employs intricate features of template syntax.

You are encouraged to familiarise yourself with its setup and parser functions before editing the template. If your edit causes unexpected problems, please undo it quickly, as this template may appear on a large number of pages.
You can conduct experiments, and should test all major changes, in either , the general template sandbox, or your user space before changing anything here.

Creates a category of the form

"Television channels and stations established in YYYY", or
Television channels and stations disestablished in YYYY"

... where YYYY is a 4-digit year.

e.g.

Usage[edit]

{{Television channels and stations established or disestablished in year category}}

No parameters needed

Errors[edit]

If the template is used on an invalid page, an error message is generated and the page is categorised in:

Category:Errors reported by television chronology category header templates (population: 0)

Purge this page to update the totals

Errors include:

The page is not in the category namespace
The page's title does not take the form "Television channels and stations established in year" or "Television channels and stations disestablished in year"