No, it's not a direct sequel to Jonathan Swift's classic, Gulliver's Travels, but rather an adventure series inspired by the book. The Adventures of Gulliver aired on ABC for 2 seasons, and then found a home in syndication as part of a package with reruns of Banana Splits.
The series focuses on Gary Gulliver (voiced by Jerry Dexter), purportedly the grandson of Lemuel Gulliver, the title character of Swift's novel. Gary's father, Thomas, has disappeared after their ship had encountered some stormy seas in the midst of a dispute between the elder Gulliver and Capt. Leech, who is after a treasure map. As his grandfather did years before, Gary and his dog, Tagg, are washed ashore on the island of Lilliput. Gary settles down for a nap, and the next thing you know, just like his dad, he is tied down by the Lilliputians, only to free himself upon waking. It takes some doing, but Gary convinces the Lilliputian King that he is friendly. Unsurprisingly, he draws the attention of the appropriately named Flirtacia (Ginny Tyler). Just as predictably, Capt. Leech shows up regularly, still seeking the map, but never succeeding.
The Adventures of Gulliver was one of the last adventure series that Hanna-Barbera would produce until launching the Super Friends franchise 5 years later. Boomerang runs it periodically, but as a weekday entry instead of weekly, meaning they burn through the entire series in about 2-3 weeks. As for a DVD release, while it'd be appreciated, I'm not sure one is ever going to be in the cards, as it depends on whether or not WB owns the rights.
Here is the intro: