I'll tell you what has happened here:
1) An assistant producer sees an article about
how the next iPhone will have a smaller dock. This is actually being reported by real new organizations which means someone has a source and it probably is true. This is now more than a rumor...it's legitimate news! So the assistant flags it for the producer.
2) The producer has no clue what an iPhone even is, but takes the info they were sent and writes their own story, probably mixing up fact and speculation. The assistant producer knows all about iPhones, but the assistant isn't the one writing the story, is she?
After mashing all the notes into a story, the producer inserts a note for the editors: "Include iPhone footage."
3) The editor gets his notes: "Include iPhone footage." Well, what does that mean? He searches the log for the last time one of their own reporters went out and shot some (because why pay someone else for new footage when you've got all those tapes in the back?) and finds a tape from June, 2007. Good enough. He's got to find 45 clips in the next 90 minutes, so let's not spend too much time worrying about this one stupid shot of a stupid cell phone.
4) The anchor reads what comes up on the teleprompter. What? You think he can change the news as he's reading it? He probably does know the story's crap, but it's too late now!
5) And for everyone saying they 'stretched' the phone, no, that's just the result of management being afraid to air old 4x3 footage properly.
"It will make us look bad to have black bars on screen! Just stretch it." Yeah. No one will notice.
So there's no real conspiracy here, it's just the result of a rushed, stupid system.
(And yes, I did use to work in local TV news and no, I don't even
watch it anymore.)