We bought this to split the cable so that we could have cable into the HDTV and cable into the DVR. Didn't work. The splitter causes very low/poor reception into the DVR, so bad that we lost reception entirely on many channels and others were pixelized (reception dropped from 70ish to 25ish, for those who know what that means). Maybe this splitter is good for some applications, but it did not work to split cable between HDTV and DVR.