The web pages for each recording have backward and forward arrows that allow you easily to cycle through all the recordings of that opera. If you'd like to view all the opera recordings in order they were made, you can go to the chronological index . From there you can follow a link to any recording of interest. Arrows at the bottom of each recording's web page allow you to cycle through all the recordings in chronological order. The series index lists all such series that I am aware of, with links to the section in the historical tour where each is discussed.
Many recordings present highlights from more than one opera.
The Gilbert and Sullivan operas have inspired a lot of parodies, take-offs and creative adaptations. These collectively are called derivative works and have a section of their own. The sullivan index lists recordings of Sullivan's non-operatic compositions. At present, this area is still under construction. Feel free to look at it, but I'm not accepting suggestions or additions yet.