According to Commander Stargazer the year is 2839
Bluegrass holds the rank of Colonel, and Quicksilver, Lieutenant.
The twins, Steelheart and Steelwill have some telepathic / empathic ability. When one feels something extreme so does the other.
When bringing up the information on the SilverHawks, the General puts what looks like a CD or DVD into the computer.
In an extended sequence before the opening credits the series plot is summarized. In this summary, but not addressed in the actual episode, we see the first appearance of the villains Yessman, Buzz-saw, Pokerface as well as the heroic spy satellite and interceptor Tally-Hawk
First Appearance: Commander Stargazer, Mon-Star, Sky-runner, Mo-lec-u-lar, Melodia, Mumbo Jumbo, Hardware, Windhammer, Quicksilver, Steelheart, Steelwill, The Copper-Kidd, and Bluegrass
During the modification into SilverHawks both Steelheart and Steelwill's organic hearts had to be replaced with mechanical ones.
Mon-Star: Moonstar of Limbo; give me the Might, the Muscle, the Menace of Mon-Star!
In the original broadcast, there was a short scene while the SilverHawks were still on Earth. Stealheart and Steelwill show off their cyborg muscle while loading the shuttle. This scene was cut when the pilot was broken into Origin Story and Journey to Limbo.
Most of the voice cast for SilverHawks also worked on another Rankin/Bass show The Thundercats, including:
Robert McFadden as Snarf / Slythe
Earl Hammond as Mumm-Ra / Jaga
Peter Newman as Tygra / Wilykat
Larry Kenney as Lion-O
Doug Preis as Lynx-O