In the 1998 cable broadcast promotional special for the TriStar Godzilla movie, Harry Shearer, in character as Charles Caiman, visits the Toho lot. He goes to a retro-looking sound department and chats with an older technician who I think worked on the original Godzilla roars. They discuss the techniques and demonstrate the tape being manipulated in an ancient-looking tape machine. Unfortunately, the visit to Toho was cut from the featurette on the DVD. I recorded the original intact broadcast special, but I don't know where to start looking for it.