Update (now with a different 2011 TV)
@ Philips - Remko, Philips - JuAn, Philips - Thomas, Philips - QK:
I got my Philips Cinema Gold replaced by a brand new Philips Cinema Platinum (58PFL9956H/12). I tested the configuration (HTS + new TV) with this new TV. The problem is still there. My brand new Philips TV still reboots when used in combination with a Philips HTS.
I can still 100% reproduce the reboot by going to the TV menu and pressing on the HTS-Radio icon. 9 out of 10 times screen and ambilight go on black, white Philips logo is shown on the TV, TV needs 40 seconds to reboot.
After reboot all HTS Easylink entries are gone from the TV menu, TV link to HTS is broken, Easylink does not work. Only a cold restart of the TV (by button) and disabling Easylink and re-enabling Easylink helps to get all HTS icons back in the TV menu.
The resets still occur like I said before:
According to what I've been experiencing lately, it seems that the reboots occur more if the Easylink setting for TV speakers is set to Easylink Autostart instead of just Easylink.
Seems that Philips combines HDMI - CEC and HDMI - ARC protocol in this Easylink function. That is the only explanation why the sound setting can be found in the Easylink menu.
It still looks like a sound issue to me, when the TV gets a sound input from HTS, TV does not like that and shuts down.
@ Philips moderators: could you tell me if the investigation started allready and if there is any progress on this issue?