Depending on the type of cable filter you have installed, the filter does different things. If your cable company installed the filter, it can restrict television station signals to help comply with your package deal. If you installed the filter, it can help you gain channels not otherwise available. Other cable filters help to separate signals designed for your television and your Internet if your provider provides both. Taking a filter off is relatively easy.
Locate the coax cable that plugs into the "Television In" or "Cable In" port on the back of your digital converter. If you do not have a digital converter, locate the, "Cable In" port on the back of your television.
Travel the cable until you locate the filter. Many filters mount between the port on the television or converter box and the coax cable. Others splice between two connected cables. The filter will look like a small box and will be colored chrome, black or gold.
Loosen the coax cable from the threaded port on the filter. If necessary, use a wrench to loosen the nut that secures the cable to the filter. If the filter splices between two pieces of cable, Remove both cables.
Thread the coax cable onto the port on your television or converter to reestablish cable connection. If the filter spliced, thread a male/male or female/female adaptor between the two pieces of coax cable to couple the cables together.