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I think many if not all are pre-recorded
Recall that often one guest will appear on CBS, NBC, FOX, ABC, MSNBC, CNN, FNC - all within a short timespan on the same Sunday
Katie Couric sure recorded and selectively bias-edited her interview on CBS - with Sarah Palin
Charelie Gibson did the same thing at ABC
That’s true. They do appear on several shows in a morning. I still doubt they would edit out much but who knows. I could see it happening in a ‘one on one’ type of interview.