The original version didn't have a celebrity voice. While the script wasn't the best, the narrator did a fine job. There are people whose career is performing narration, so a recognizable celebrity certainly isn't a must. With that said, the Cronkite narration added a little gravitas to the presentation because of his status as a voice of authority. I didn't have a problem with Irons and, from the videos I've seen with the Dench narration, a problem with it either. It doesn't really matter who they get for the narration as long as it is well-written and delivered well. It would be amazing if, one April 1, they replaced the narration with Gilbert Gottfried for just a day without telling anyone. Someone needs to make that happen. It couldn't be that difficult to switch out the digital files for a day.