What makes a good parody? It has to be true to the original.
It has to twist the original content in a way that's unexpected and/or taps into an exisitng meme about the origianl.
I keep trying to think of a third item (thanks Bob Shrum for teaching me the rule of threes), but I'm outta ideas.
BEFORE YOU CLICK THIS IS NOT SAFE FOR WORK... Put your headphones in.
However you break it down, this is brilliant parody. It caputres the tone and feel of cable ads perfectly before twisting it into a sharp satire of the cable companies' business model. Ultimately, I think it's successful because it links into the meme that the cables companies are a**holes who care more about making money than they do about providing a good product.
My wife asked me who was responsible for this video, why did they do it? It's not part of some anti-cable campagin as far as I can tell, but maybe it ought to be because it perfectly crystalizes everything that's wrong with them.