Tom Selleck's dad appears as grandpa Everett.
The only episode in which John Hillerman (Higgins) does not appear.
The Vietnam Veterans Memorial was established in 1982, made up of two 246-foot-9-inch long black granite walls engraved with the names of those who died as a result of their service in Vietnam and Southeast Asia during the war. The memorial is located on 2-acres in Constitution Gardens, adjacent to the National Mall and just northeast of the Lincoln Memorial.
The exterior shots of Tidewater (the funeral precession, the church, and the drive to the high school reunion) were all filmed in Norfolk, Virginia.
Guest star David Huddleston co-starred in the classic Western movie "Blazing Saddles" with Magnum regular John (Higgins) Hillerman. The two, unfortunately, have no scenes together because this is the only episode in which Higgins does not appear.