“Goo Goo Gai Pan” – which aired in 2005 as part of Season 16 – sees the Simpsons join Marge’s (Julie Kavner) sister Selma (also Kavner) on a trip to China so that Selma can adopt an orphaned baby. The plot’s ongoing joke is that because the Chinese government only allows married couples to adopt, Homer (Dan Castellaneta) must pretend to be Selma’s husband. Standing in their way the whole time is adoption agent Madam Wu, who Lucy Liu voices.
There’s no doubt that Liu does a good job in a somewhat one-dimensional role, and she has some funny lines, such as “Fool me once, shame on you. Fool me twice, shame on Wu.” On the other hand, it would be fair to say that “Goo Goo Gai Pan” is among those episodes of “The Simpsons” that haven’t aged well. “Unfortunately, when they arrive in China for observation,” wrote Robert Canning at IGN, “the comedy doesn’t really come from the unlikelihood of Homer and Selma as husband and wife, but from numerous random jokes about all things Chinese.”
While the episode may not fly with American audiences today because of how it pokes fun at Chinese culture, it was also removed from Disney+ in Hong Kong due to references made to the Tiananmen Square massacre in 1989.