Generally, there is a 2-way splitter behind the TV wall-plate in your storage bay. One leg feeds the outlet on that wall-plate and the other leg does in fact feed the living room TV. If you never plan to have a TV in the storage bay, consider removing the splitter.
If you also have an outdoor TV cabinet, generally, there's another splitter in the entertainment cabinet for the main living room TV. Here again, if you never plan to have a TV in the outdoor TV cabinet, consider removing that splitter.
Finally, be aware that there are at least 2, maybe 3 coax splices in the underbelly, right behind the I-beam frame, below the living room TV, where you see the coaxes penetrate the frame.