"The Proper People" explore an abandoned command center / nuclear bunker in New York state. An M28 can be seen at about the 20 minute mark. Link here: https://www.youtube.com/watch?v=LJl7z4i5Tos At the beginning of the video a TMC SBT-1KA transmitter as well as its associated receiving desk console. Possibly part of the SYM-2007. Nicholas Gromak