PBS' History Detectives features an inquiry about piece of mylar

Tonight, PBS' "History Detectives" featured an inquiry about a piece of mylar thought to have come from a balloon launched by Echo 2 satellite back in the sixties. The inquirer was WA2MXR who appeared on camera. The late W3HNT was mentioned. The following link is the transcript of the story. http://www.pbs.org/opb/historydetectives/pdf/801_satelloon.pdf