This doesn't strike me as a particularly convincing argument, Keith. I think a convincing argument would be:

"Dear Channel 4,

I am an avid watcher of your network.

I read the report in which Ireland Today (link here) found that Big Brother and Celebrity Big Brother both have low ratings. I want you to be a healthy, profitable business and, as such, if these programs do not grow soon, ratings wise, I would like to see you move to more profitable endeavors.

Thank you for your time and consideration.

Sincerely,

Keith McLaughlin"

Feel free to use it!

Patrick