Cosmos: A Personal Voyage - Overview

Overview

Cosmos was produced in 1978 and 1979 by Los Angeles PBS affiliate KCET on a roughly $6.3 million budget, with over $2 million additionally allocated to promotion. The program's format is similar to earlier BBC documentaries like Kenneth Clark's Civilisation, Jacob Bronowski's The Ascent of Man and David Attenborough's Life on Earth. (The BBC – a co-producer of Cosmos — later screened the series, but episodes were cut to fit 50-minute slots.) However, unlike those series, which were shot entirely on film, Cosmos used videotape for interior scenes and special effects, with film being used for exteriors.

The series was notable for its groundbreaking use of special effects, which allowed Sagan to seemingly walk through environments that were actually models rather than full-sized sets. The soundtrack included pieces of music provided by Greek composer Vangelis such as Alpha, Pulstar, and Heaven and Hell Part 1 (the last movement serving as the signature theme music for the show, and is directly referenced by the title of episode 4). Throughout the 13 hours of the series, it used many tracks from several 1970s albums such as Albedo 0.39, Spiral, Ignacio, Beaubourg, and China. The worldwide success of the documentary series also put Vangelis' music in the homes of many and brought it to the attention of a global audience.

Turner Home Entertainment purchased Cosmos from series producer KCET in 1989. In making the move to commercial television, the hour-long episodes were edited to shorter lengths, and Sagan shot new epilogues for several episodes in which he discussed new discoveries (and alternate viewpoints) that had arisen since the original broadcast. Additionally, a 14th episode was added which consisted of an interview between Sagan and Ted Turner, and this "new" version of the series was eventually released as a VHS box set. This same re-edited version was also released on 12" Laserdisc, a popular consumer format at the time and precursor to the DVD. Two episodes were released per disc (one episode on each side). The laserdiscs were sold separately, not in a boxed set configuration like the VHS tapes.

Cosmos had long been unavailable after its initial release because of copyright issues with the included music, but was released in 2000 on worldwide NTSC DVD, which includes subtitles in seven languages, remastered 5.1 sound, as well as an alternate music and sound effects track. In 2005, The Science Channel rebroadcast the series for its 25th anniversary with updated computer graphics, film footage, digital sound and updated scientific knowledge that had occurred in the past 25 years. Despite being shown again on the Science Channel, the total amount of time for the original 13 episodes (780 minutes) was reduced 25% to 585 minutes (45 minutes per episode) in order to make room for commercials.

In 2009, Freemantle Media Enterprises released a 5-disc DVD set of the original series in the UK, including bonus science updates. The DVD set was digitally restored and remastered. Although a little grainy in places, it is generally considered to be the best reproduction of the original series to date.