They will blame your equipment if they hold true to form. They simply don't recognise they have a problem unique to them which does not affect other broadcasters.
Correct, see below
Thank you for your enquiry regarding lip sync.
>
> I'm sorry to hear that you've experienced problems recently. Our
> Technical team has advised that an engineering line up is carried out
> for all programmes which are closely monitored, both in audio and
> vision, during transmission. While lip sync is tuned correctly at the
> point of transmission there are many variables that could introduce sync
> differences in the home including device processing and the interaction
> between various types of TV, digital boxes and other equipment.
>
> Many HD equipment manufacturers provide an off-set function in
> television displays, A/V systems (amplifiers) and Set Top Boxes which
> can be easily accessed via the menu. The Technical team suggest that you
> may like to explore this option, starting with the Set Top Box if a
> reboot (by unplugging at the mains for 30 seconds) does not help. Please
> consult your equipment manual for details.
>
> I hope the above information helps to rectify the matter for you.
> However, if lip sync problems should continue would you please forward
> answers to the following questions. Our technical team is pleased to
> receive all comments from viewers and I will pass your details to them.
>
> Postcode
> Region
> Platform (eg Sky, Freesat, Cable, Freeview)
> Channel(s) affected
> Programme(s) affected
> Date & time of broadcast
> Are you referring to 'live' or time-shifted content on a PVR
> Are you viewing via the TV speakers or additional speakers
> Set top box or integrated TV details (manufacturer etc)
> Name & contact details
>
> Once again, thank you for taking the trouble to contact ITV.
>
> Kind regards
>
> Julia
I did say that ITVHD is the only channel effected and that googling ITVHD lip sync brings up hundreds of results