The miniseries was originally scheduled for release in September 1979 as a major kickoff to the 1979-80 season. Unfortunately, it fell victim to some negative publicity from Ray Bradbury himself. Although Bradbury had worked with scriptwriter Richard Matheson in adapting his book to the small screen, he was less than thrilled with the final production. At one point, shortly before the miniseries' scheduled release, Bradbury found himself the sole representative of the production at a press conference. When one reporter asked him what he thought of the miniseries, he responded candidly, "Booooooooring!" NBC soon shelved the miniseries and did not air it until January 1980.
The American Flag on the astronauts uniforms contains only 48 stars.
A film version was previously mooted in 1964 with Gregory Peck in the lead. Alan J. Pakula and Robert Mulligan were supposed to produce and direct respectively.
A 90 minutes version, edited out of three episodes of the series, was theatrically released in France a year before the complete version was weekly aired on television.
The series takes place from July 1976 to March 2007.