According to existing information, there is no evidence that 'The Simpsons' predicted any episode where Bitcoin would drop to $1. However, the show does mention or imply Bitcoin and other cryptocurrencies in several episodes:
1. Season 31 Episode 13 'Frinkcoin': In this episode, Professor Frink creates a cryptocurrency called 'Frinkcoin', becoming the richest person in Springfield.
2. Season 32 Episode 18 'Burger Kings': In this episode, the stock ticker on the screen shows the price of Bitcoin as infinity (∞), which is seen as a humorous suggestion that the price of Bitcoin could rise infinitely.
3. Season 35 Episode 5 'Treehouse of Horror XXXIV': In one of the stories 'Wild Barts Can’t Be Token', Bart is transformed into an NFT and goes on an adventure in the blockchain, which is a direct reference to NFT and blockchain technology.
Additionally, in Season 25 Episode 7 'Yellow Subterfuge', aired on December 8, 2013, Krusty the Clown mentions that he lost all his money on Bitcoin.
In summary, while 'The Simpsons' has mentioned cryptocurrencies multiple times in episodes, none predict that the price of Bitcoin would drop to $1.