Factual error: When Nate goes to see Hank to show the incriminating photos of Bobby watering the lawn you can see Nate's car has orange tinting on his front headlight. Front headlights cannot contain any color tinting and must be clear. The car is an expensive looking car. I doubt he wanted to change the tinting of it either.
King of the Hill (1997)
1 factual error in season 4
Starring: Brittany Murphy, Pamela Adlon, Mike Judge, Kathy Najimy, Johnny Hardwick
Returning Japanese (1) - S6-E21
Plot hole: In this episode, Hank meets his paternal half brother. They look alike. However, we saw in an earlier episode that Hank's facial structure takes after his mother, not his father. Since they are paternal half brothers, then the Japanese brother cannot look like Hank since he has a different mother.
Dale Gribble: Boil up some Mountain Dew. It's gonna be a long night.
More trivia for King of the Hill
To Sirloin with Love - S13-E20
Question: What is Boomhower's occupation?
Answer: Jeffrey Boomhauer is a Texas Ranger as can be seen in the final episode at the end when he sets his wallet down, it flips open revealing a Texas Ranger badge.