“will this pass 4k from directv to one set and just 1080p to the other”
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Although I do not subscribe to DirecTV, I can explain a similar story where I used a bit of trial-and-error to solve my own home theater milieu: My original intention of purchasing this product was that since a Spectrum technician replaced my DVR box with a Coax-In and a Coax-Out connector, with a single Coax-In connector, outputted through an HDMI connection to my TV, I no longer had the Coax-Out to connect to a Coax Splitter, to connect my coax cable to the back of my HP Pavilion Desktop that has a TV tuner card. Thus, the Live TV function in Windows Media Center was rendered unusable. Nearly a year ago, I purchased an LG 23" IPS LED HDTV monitor, and had connected my HDMI from my computer into my monitor. Never wanting to settle abandoning Windows 8.1 64-Bit with WMC for Windows 10, which scraps WMC, I needed to figure out how to pass my cable towards the monitor. With only one HDMI mode and a DVI-VGA mode available, what's a man going to do? Buy this splitter, buy a HDMI-to-DVI adapter (or HDMI-to-VGA adapter, if available), and any extra HDMI cables, and you can do the following: Connect your HDMI cable from the computer to the HDMI-to-DVI (or HDMI-to-VGA) adapter. Connect an HDMI cable (preferrably the shortest one available) from the cable/satellite box to the center Input connector of this device. Connect an HDMI cable into the Output of the splitter device, and connect it to the back of the HDMI port of your HD monitor, especially if it's capable of 1080p. Connect the other HDMI cable into the other Output of the splitter, and connect it to your main HDTV. Make sure your computer video card is set to handle 1080p (or 1920x1080) or whatever is possibly best. On my LG monitor, conflicts did arise involving the cable signal being 1080i and my monitor being 1080p. A warning came up on my screen, and used the jog switch to select 'Do not show this message again,' because when switching inputs, you want to watch TV in 1080i, but do your computing in 1080p, flipping the Input from HDMI to DVI. Having a 11-year-old HP Pavilion PC, I managed to figure out how to use the Live TV tuner, although I cannot get a picture, and the IR receiver, so I can still utilize my Media Center remote, changing the channels without having to turn around to my Sony HDTV behind me in my living room setup. I stick the IR receiver to the infrared sensor on my cable box, and whenever I don't feel like 'firing on' the 40" Sony HDTV, rather watching TV on my smaller 23" LG HDTV monitor, I'm all set. Just don't ask me how to connect sound from the cable box to the computer. I tried using Y-connectors, connecting the red/white RCA audio cables from the cable box to my Logitech Z506 sound system, but I couldn't manage to isolate the sound, settling for connecting the sound to my 16-year-old Kenwood Stereo receiver, and routing the 'AUX' cable to my iLive soundbar, being able to hear sound out of the cable, even when the Sony 40" HDTV is turned off. When I first purchased this HDMI splitter, I couldn't figure out why my resolution would switch from 1080i to 480p, whenever switching my LG monitor to HDMI mode. You have to ensure that your DVI resolution is set for 1080p (1920 x 1080) or whatever highest resolution possible, check your cable/satellite box resolution settings are set only to 1080i, de-selecting any other lower resolution. If your monitor posts a warning box, informing that the resolutions are slightly different (Ex: 1080p is different from 1080i), simply set the monitor's warning to not display the warning again, and everything will be just fine. You can run the HDMI mode in your HD monitor in 1080i and run your computer in 1080p, which is preferrable, as it eliminates the screen flicker in Interlaced mode.
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