The Quick Start Guides (QSGs) for the Slingbox M1 and the Slingbox M2 show a common cable arrangement. But your setup may be different. So here are some additional options to help you get oriented and correctly connect the cables for your Slingbox.
Frequently, you'll find that your TV already has an HDMI cable connected between it and your cable or satellite set-top box. If that's the case, all you need to do is connect component (green/blue/red) cables from your set-top box and your Slingbox, like this:
Don't forget to connect the red/white audio cables, too!
Once again, be sure to connect both the video and the audio (red/white) cables between all devices.
Many set-top boxes don't offer component (green/blue/red) outputs that you can use with your Slingbox. If that's the case, there are third-party products that you can purchase. With a converter product, the cabling works like this:
There is an adapter product that we've tested with current Slingbox models. You can find out more using the link below.
Lastly, your set-top box may not have an available component output set ... or you may have some other limitation. In that case, you can connect a single composite (yellow) video cable from your set-top box to your Slingbox. However, if you do this, understand that composite (yellow) video only carries Standard Definition (SD) video. It is not capable of carrying High Definition (HD) video:
As before, be sure to remember to connect the audio (red/white) cables, as well.