The White Queen dropped nearly 900,000 viewers for its second episode on Sunday, according to overnight figures.
The War of the Roses drama was still one of the most-watched shows of the night, attracting 4.48 million (18.5%) at 9pm on BBC One.
Earlier, Countryfile scored the biggest ratings of the evening with 5.58m (25.9%) at 7pm, followed by the final Antiques Roadshow of the series with 4.58m (19.2%) at 8pm.
Andy Murray documentary The Man Behind the Racquet brought in 2.57m (18.8%) at 10.30pm, ahead of Wimbledon's launch today (June 24).
On BBC Two, tennis profile Venus and Serena was seen by 723k (3.3%) at 7pm. Kate Humble's new series Secret Life of the Sun interested 1.37m (5.7%) at 8pm, followed by Rise of the Continents with 1.68m (6.9%) at 9pm.
ITV's Miss Marple gained back nearly 300k viewers from last week with 4.13m (17.1%) at 8pm, with a further 278k (1.3%) on +1. Earlier, Tipping Point quizzed 3.31m (15.4%) at 7pm (222k/0.9% on +1).
On Channel 4, the latest episode of The Returned grabbed 867k (3.6%) at 9pm (232k/1.3%). Terror in The Skies brought in 939k (3.9%) at 8pm (239k/1.0%).
Channel 5's Big Brother entertained 1.36m (5.6%) at 9pm (214k/1.2%), while Once Upon a Time continued with 680k (2.8%) at 8pm.
BBC Three's coverage of the Confederations Cup scored 1.28m (5.8%) at 7.30pm.
On ITV2, the latest Only Way is Essex attracted 902k (5.0%) at 10pm (120k/1.2%).
