“BalloonFest ‘86: The Real Story” is an uplifting (smile ... I remind you that such thoughts were largely unknown in 1986. We should not judge what happened then based on modern standards.

Following is a transcript of the video. Narrator: HBO's new miniseries, "Chernobyl," recounts the 1986 nuclear disaster in Ukraine. It's a dramatization, so while many events depicted in the show ...