Philips Headphone problem?

So I have a Philips 32pFL5322. This is a little complicated but I have PS3 connected through HDMI and I have a home theather that I would like to connect to the Philips TV, but the problem is that the Philips TV only supports audio jack on EXT 1.
The PS3 is connected to HDMI so if I want to get the sound from the Home Theather I have to connect it to EXT 1 and get much worse resolution. Is there a way to connect the home theather to the Philips TV and let it work on all channels aka, EXT1, EXT2, EXT3, HDMI and so on...
question: How to get headphones to work on all stations: EXT1 etc. HDMI 1 etc...
 
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