For more proof, here is the text explaination on the DVD extras:
The Analog ProcessThe one-inch video tape was utilized as the
reference source for all subsequent editorial decisions. These tapes reflect what the viewing audience has experienced for more than a decade. These early tapes reflect the quality production available 18 years ago. These masters were transferred from
35mm prints on telecine machines. Film prints generally have limited contrast range and color saturation. Additionally, there is a softness in the video which tends to mask the overall sharpness to the picture.
The downside to this process was the inferior color depth, clarity, and the mount of analog noise. The analog video technology of the 1980's was far inferior to the digital film transfer process available today.
The Digital ProcessToday, the film is typically 35mm negative instead of a 35mm print. The negative is ultrasonically cleaned using an electrostatic process with counter rotating buffers and alcohol (the alcohol is for cleaning the film). The film passes over sticky rollers, further cleaning the film (like a lint brush). It is then digitally transferred to a digital Betacam videotape.
The digital nature of the image source is retained in all subsequent copies. The analog tape format is not so forgiving when multiple copies are required from one master tape. Digital Betacam can be reproduced almost infinitely with no signal degradation.
Because the film-to-tape process has improved dramatically over the years, today's film transfers are quieter (less noise in the picture), cleaner, and more colorful. Also, the film technology has improved, creating grainless film stocks with greater color range and color clarity.
Over the years, the simple physical handling of these 18-year-old film negatives has created some physical defects that can't be prevented. Some remaining dirt is embedded in the emulsion of the negative.
Alas, we don't live in a perfect world and like all things, film ages.
As part of the restoration process, attempts were made to minimize the abrasion and scratches in the subsequent assembly process. A process called "dust-busting" was employed to eliminate the more noticeable dirt, hair, and animator dandruff. This process is unique to cleaning films, the process simply takes the previous or next clean film frame and replaces that segment of the picture.
Some instances the dirt, dust, and scratches were too great. The
film transfer was subjected to an electronic process of removing scratches and dirt called "DVNR".
The Assembly ProcessThe 35mm film masters were often incomplete:
-scenes were missing
-scenes were insterted with errors or omissions
-scenes were not completely animated
-characters were not talking whent they should (lights blinking, mouths moving)
-missing layers of animation
-scenes rendered backwards
Clips that were missing were replaced with the original one-inch transfer.All of the recaps were reconstructed from the 35mm high grain negative transfers.
From assorted additional scenes there are slates indicating the scene and episode number. The episode number is referenced to the Sunbow episode number. These slates are followed by the appropriate replacement action.
Ok so here's a couple pics I took from my HD screen (was not able to pull the contents off directly as the dvd did not read in my drive) showing some of the DVD's own side-by-side comparisons of their direct film transfer and the original broadcast tape:
Click to view attachmentClick to view attachmentNotice in the 2nd pic, they were unable to recover the missing film footage, so that side is blank. For scenes like this, they used the original broadcast master.