Do you know when Beck was at ABC? What timeframe are we looking at here?
My thinking is Glenn appeared on ABC around 2006 to 2007. But it could have been earlier. He joined HLN in 2006 with his first tv show. Not sure if that was the platform he used using to go on ABC or if ABC had him on before when he just did his radio show. But probably around 2006. Also not sure if he meant Good Morning America when Diane was there or when she started the Nightly News. I am guessing it was when Diane was on GMA and either Peter Jennings or Charlie Gibson did the nightly news.
Beck also has been a contributor to ABC's "Good Morning America," has a Web site and does standup comedy tours.