Which episode of family guy has the clip of the dog before brian in it?!

Question: Which episode of family guy has the clip of the dog before brian in it!?
Answers:

u r thinking about the episode when they show the griffin's old dog named todd!.!.!.that was in the episode "Deep Throats"!.!.!.season 4, episode 23!.!.!.Www@Enter-QA@Com

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