'Titanic' sunk by BBC One's 'Silent Witness' Now in its fifteenth series, the gruesome BBC forensics drama 'Silent Witness' returned at 9pm on Sunday night, gliding easily to the top of Sunday night's prime time TV ratings with an audience of 6.7 million. ITV's Sunday night competitor, a four-part drama said to be one of the most expensive miniseries' created for TV, lost a hefty 2.7 million viewers this week. It sunk to 4.38m on ITV1 and 283,000 on ITV +1, a vast percentage drop from its Julian Fellowes' much-hyped retelling of the story of the sinking of the 'Titanic' cost £11million, making it the most expensive drama ever screened on ITV. It opened to only luke warm reviews last week, and viewers criticised writer Fellowes for a string of apparent errors and historical inaccuracies, ranging from the appearance of a car and train not introduced until years after the liner sank, to shots appearing to show the vessel sailing backwards. The Downton Abbey creator has previously defended the show's ratings chances, suggesting that it lent itself to being watched at a later date. With BBC versus ITV there's clearly some advantage in watching the one with no advertisements and taping the one with advertisements, because then you're in control of that.