Eagle eyed viewers of Sainsbury's latest Christmas TV commercial have spotted an unconventional approach to advertising - one which has seen the retailer unwittingly promote products of its Co-Op rival. Three of the rival chains own-brand products were spied in Sainsbury's Christmas themed home video advert. A spokesman for the Co-Op remarked "It seems that our Truly Irresistible Christmas pudding, lemon torte and Christmas cake are so good even Sainsbury's can't resist advertising them.
