When George Eads took on the persona of an attorney as he entered the police station, the theme music from The People's Court (1981) was playing in the background.
During the scene that George Eads and Bruce McGill, the two Jack Daltons, square off in the interrogation room, you can see that the pattern of George's suit and Bruce's sport coat are the same.
George Eads and Bruce McGill grew up in the central Texas area.
After Jack tells MacGyver that Christmas was made up by Mattel to sell more Hot Wheels, MacGyver tells Jack that "Christ Mass was celebrated in Rome in 336, about 1000 years before Mattel started making Hot Wheels". It was actually about 1632 years later, in 1968, that Mattel made and sold the first Hot Wheels car.