Arlene v Alesha ageism argument won't wash with Diane Sawyer

Was it the curse of Arlene (or Alesha)? Did the BBC's top dogs suddenly decide for themselves to recall assorted mature female news presenters from their kitchen sinks and regional TV newsrooms – or were the hounds of political correctness baying too loud? At which point, cross the Atlantic and watch ABC's World News. It used to be introduced by a man, Charlie Gibson. He's retired. It is now introduced by a woman, Diane Sawyer . Diane is 64. Her arrival has pushed up ratings by nearly 9%, so that her show is breathing down the neck of Brian Williams, the current network leader. She's just good. Indeed, after 11 years of breakfast television experience, she's great. And age has nothing – nothing at all – to do with it.