The Sony or Panasonic television cabinet mentioned in the Craigslist ad (it is shown in another thread) is simply a cabinet. The television chassis is long gone, probably junked when it developed some expensive repair problem such as a bad CRT or flyback. The owner probably decided to sell it when he or she realized it was just taking up space, and they wanted it out of the house ASAP.
BTW: I do not like, either, seeing well-crafted solid-wood cabinets that once housed classic or antique TV chassis being turned into fishtanks, or worse, broken up and used for firewood.

This is often done by people who have no appreciation, as we VKers do, for the value of these old TVs; when the set finally develops a problem for which there is no easy or inexpensive solution, one of two things can and often does happen: either the entire TV, nice solid-wood cabinet and all, gets put out for the trash (I don't know if that's even allowed anymore, given the current regulations in some areas regarding recycling) or else the chassis is pulled, the cabinet cleaned up inside (there will likely be years or decades worth of dust, critters, etc. in there), and used as a fishtank, bookcase, or, God forbid, a tool chest.