Just uploaded a new article to The Thunder Child. Here's the URL.
Voyage to the Bottom of the Sea made its debut a year before Star Trek, and lasted a year longer than Star Trek did.
Just as Star Trek still has its fan base decades later, so does VTTBOTS, as you'll see in this article. The show starred Richard Basehart as Admiral Nelson, David Hedison as Captain Crane, and a handful of other actors who rounded out the bridge crew.
Below is a video of Pendercraft's Flying Sub (a craft that made its debut in the 2nd season) - radio controlled.