Yes, we need to know what actual surround sound system you have, since those crazy people at phillips have made more than one model in the multiple decades they have made electronics.
We will also likely need to know what TV you have because you will likely need to send audio from TV to your philips system.
I can make the assumption that you have one of those dvd/blu-ray combo boxes with some speakers. These are more designed with the intent of providing surround sound for your dvd/blu-ray but not much concern about other inputs.
At best these have toslink, SOMETIMES they have ARC via HDMI as an audio input for all the rest of your devices. For this setup you hook everything to TV HDMI ports and then output sound from TV to your Philips box.
MXQ to TV with HDMI
TV to HTS with optical cable.
MXQ to HDMI input selector with audio extraction.
Selector to TV with HDMI
Selector to HTS with compatible audio output (analog or digital).
There are other options but without model numbers we would have to guess.