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In the manual for Rocko's Modern Life: Spunky's Dangerous Day, it is mentioned that Spunky is idiotic because a TV set dropped on his head when he was a puppy. This is not mentioned in any episode of Rocko's Modern Life, but is a reference to a real-life incident from Rocko creator Joe Murray's childhood, which is also referenced in the series' opening titles.
Manual (Page 6):
https://archive.org/details/rockos-modern-life-usa/page/n3/mode/2up
Joe Murray recounts the incident:
https://www.youtube.com/watch?v=b1TJZLobTBs#t=17
https://archive.org/details/rockos-modern-life-usa/page/n3/mode/2up
Joe Murray recounts the incident:
https://www.youtube.com/watch?v=b1TJZLobTBs#t=17
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In the "Ice Scream" level of Rocko's Modern Life: Spunky's Dangerous Day, Earl the Dog can be found as an enemy in the Bigheads' house. The game was released a year before the airing of the Rocko's Modern Life episode "Frog's Best Friend", where Earl was adopted by Bev.
Gameplay of the third stage "Ice Scream":
https://youtu.be/f1fH7SJQRMk?si=Tc0rDde2UsYwL4KY&t=1677
Clip from the episode "Frog's Best Friend":
https://youtu.be/rpkda2A_5uA?si=andJJcLd_-JjUqh3
https://youtu.be/f1fH7SJQRMk?si=Tc0rDde2UsYwL4KY&t=1677
Clip from the episode "Frog's Best Friend":
https://youtu.be/rpkda2A_5uA?si=andJJcLd_-JjUqh3
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Rocko's Modern Life Season 1 Episode 10B "Trash-O-Madness". Pilot version featured on the Rocko's Modern Life Season 2 DVD. The punching clip is featured in the pilot version of the intro, which can be seen here:
https://www.youtube.com/watch?v=zsQxnOMGZFg
https://www.youtube.com/watch?v=zsQxnOMGZFg
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