I am, I know I am.
But it's like telling a knock knock joke and expecting to win a Perrier Comedy Award.
It's not witty or clever or knowing. It might have been twenty years ago when Private Eye or whoever thought it up, but now it's just really really lame.
You can just tell that the person using it is thinking, "ah, I'm so erudite and razer-sharp - I'm not taken in by the media, no not me! But I also am able to indicate this with a light touch of humour which only serves to demonstrate that my viewpoint is far superior to anyone elses"
Twats.
That is all.