What Happened?

This from an e-mailer:
"I work early mornings so I taped Monday night's NightLine to watch Ted talk about his friend Peter Jennings. Good program, but KATV did not air the last five minutes of this tape delay program and I want to know what happen. They rolled some local spots then sat in black for about 20 to 30 seconds and then sat on a graphic for about 4 minutes before the next program started. Just wanted to know if you or someone else knew what happen? What a night to screw up!!!"