I've tried to find a link to the advert, but I was not successful as it is quite a new advert. Look out for it.
It's a 25% off advert for Sainsbury's where the voice over quite clearly says 'Sainwees' instead of Sainsbury's. It's so annoying. I recorded it on my phone (ah the joys of sky plus).
How could they not have seen this when looking at the final product of the advert? Something so easy to change too - well I assume it is.