I have a Samsung 50" Plasma TV (Model# PS50B850Y1M) which is connected to a Pioneer Receiver (Model# VSX-819H-K) via S/PDIF Digital Audio.
When I choose a Freeview channel with Dolby Digital audio (TV3) the audio output from the receiver speakers is perfectly in sync with the audio output from the built-in TV Speakers.
When I choose a Freeview channel with HE-AAC audio (TV1/TV2) the audio output from the receiver speakers is delayed and is out-of-sync with the audio coming from the built-in TV Speakers. I would estimate the delay to be around 200ms - 250ms but this is purely an non-scientific guess.
I have upgraded the TV Firmware to the latest version, but this has not helped.
Any assistance appreciated.