Question: Not saying I'm an expert on time travel, but when Goob and 'Doris' submit the Memory Scanner as their own, shouldn't Doris immediately vaporize much like she did when Lewis said he wouldn't invent her, seeing as Lewis is still theoretically in the future and wouldn't be present in the past to invent Doris?
Question: Is the Dog in glasses a reference to Mr. Peabody, or just a coincidence? I thought if it was, the commentary would mention it, but there was no mention of the gag at all.
Question: Why would the pretty girl who plays with the trains be married to the obese, immobile Uncle Joey? Also, what is the joke when the old man says "That's Uncle Joey. He works out"?