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I now know I am getting old as it drives me nuts when I tune into a radio interview in progress, it ends, and the host doesn’t bother to identify who we just heard. This was standard practice not too long ago and I’ve noticed CFRB are the worse for this, while CBC Radio One seems to always identify guest, top and tail. Like I said, I’m getting old!
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Not only that, but convention says you should ID them in mid-interview, in case someone has tuned in during the middle of it and may not have any idea what they're talking about. It's just common sense, but that's often in short supply these days.