According to The Wall Street Journal, Apple’s downfall will be caused by… the TV market. My own take is this: Apple isn’t in the TV business and nobody knows when this will happen (if it ever will). I prefer to reserve judgement on actual facts and actions instead of expectations.
As for the TV market, I believe this is becoming a thing of the past. We are on the post-PC era and we are entering a post-TV era too. Look at the kids, they listen to video content first on the web. For them, the TV isn’t playing the same role as it did 10, 20 or 30 years ago to our generation. It is far for certain Apple will enter a declining market.