Nickelodeon did not care for George Liquor and vetoed a majority of his proposed appearances in Ren and Stimpy. When Spumco was fired from the show, Nickelodeon had no desire to show Liquor again and sold the rights back to them.
Stimpy's Sammy Mantis disguise kit includes a "screw-on thorax" but it's clearly an abdomen.
The credits for voice actors are listed as "The Players", rather than "Voices" or "Featuring the Voices Of."
When released on DVD, some of the episodes were edited versions due to Paramount using the master copy tapes from the Spike TV network.