When one of Mom's sons says that Fry must be a genius of the highest order, they show him watching Sanford and Son, as indicated by the theme music heard.
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The title of the episode is a play on name of the film A Fistful of Dollars.
In some cases, compound interest may swell small amounts into a fortune, as happens in the Hitchhiker's Guide to the Galaxy by Douglas Adams and When the Sleeper Wakes by H. G. Wells, or the Futurama episode "A Fishful of Dollars".
A similar idea of growing interest on the contents of a bank account is seen in a first-season episode of Futurama entitled "A Fishful of Dollars", in which Fry finds that his bank account contains 4.3 billion dollars after leaving it with 93 cents 1000 years prior.
For a Few Dollars More | A Fistful of Dollars | Dialing for Dollars | Bowling for Dollars | A Fishful of Dollars | Three Dollars | Pistilli in ''For a Few Dollars More | Lukschy as John Baxter in ''A Fistful of Dollars | ''Dollars'' trilogy | "Dialing for Dollars" |