Join Date: Jul 2005
Location: Craig Henry (Greenbank/Hunt Club), Nepean, ON
That depends on how your outlets are wired, but in general, some reconfiguration is required.
In most modern installations, each outlet is a "home-run" back to the entry point where the splitter is located.
In order to feed the OTA antenna from an upstairs cable outlet to the TV in the basement, you would want to change the connection at the splitter from the cable run to upstairs to be connected to the "input" of the splitter.
If you are only trying to feed the one TV in the basement, then it would be better to disconnect the splitter entirely, and connect the the two cable runs with a simple F-barrel connector. This way, all the signal from the OTA antenna is passed to the TV in the basement, rather than only half (or less, depending on whether the splitter is a two-way, three-way, or four-way splitter.)