Episode: #4.10 - 15 December 1983, the destroyer shown is the USS Wren (DD 568) which was scrapped in 1975.
This is the only episode that TC calls Higgins "Jonathan", as he usually refers to him as "Higgy Baby".
TC refers to the fact that he celebrates Kwanzaa, and gives an explanation of the holiday. This was one of the earliest mainstream references to Kwanzaa to be made on a Network TV series.
The frequency 121.5 mHz is the frequency one would use to make a "May-Day" call.
The island shown on the map where the team ends up is actually Kaho'olawe off the coast of Maui. While, it was indeed used as a bombing range during WWII all the way up to 1990, it was not the actual filming location.
