Some pieces of the puzzled are still missing, but according to various old newspaper articles:

• Initial VHS release of three titles (Swinging Safari, Wonders Down Under, Deep Sea Dive) on 1994-03-02.
• Three more VHS titles (Totally Tropical Rain Forest, Amazing North America, Adventures in Asia) on 1994-07-27.
• An edited version of the series began airing on CBS on 1995-09-16 . Totally "Tropical Rain Forest" was the first episode. One unreleased episode (Polar Prowl) premiered on CBS on 1995-10-21.
• Three more physical releases (Dinosaurs and Other Creature Features, Monkey Business and Other Family Fun, Polar Prowl) on 1996-08-27.
• Two more VHS releases (Awesome Animal Builders, Secret Weapons and Great Escapes) on 1997-10-21.
• The series also aired on the Disney Channel, but I couldn't find the premiere. All I know is that some episodes aired in May-July 1997.

I decided to use the VHS release dates for all episodes. I also added them as two seasons since there is a significant change in the format. But, unfortunately, I didn't find the original release for Hot Dogs & Cool Cats and Farmyard Friends.