I currently have cable and would like to also have directv. I there a switch that you can install to select cable or satellite. Something like a A/B switch for your comouter printer ?
You can also connect the cabletv to the antenna input of your directv STB, to watch cable just shut the directv box off. (I know this applies to the SD/non-DVR stb, however, I cannot speak for the others for sure, but it should be the same).
If your TV has Video inputs,
Run your cable into the rf input on back of TV.
Run the sat signal to Video 1 , or into an HD input, if that applies, and let the TV do the switching for you.