24: Live Another Day dipped by around 100,000 viewers for its latest episode on Wednesday, according to overnight data.
Sky1's action drama thrilled 553k (2.7%) viewers at 9pm, falling from last week's 659k audience.
On BBC One, Watchdog appealed to 3.8m (19.8%) at 8pm, while new documentary series Del Boys & Dealers topped the night overall outside soaps with 3.9m (18.8%) at 9pm.
BBC Two's Chelsea Flower Show coverage continued with 2.5m (13.1%) at 8pm, followed by Coast Australia with 2.0m (9.8%) at 9pm. Episodes dipped from last week's launch to 840k (5.0%) at 10pm.
On ITV, Harry Potter and the Deathly Hallows Part 1 brought in 2.4m (12.5%) at 7.30pm (422k/2.4% on +1).
Channel 4's Supervet was seen by 1.4m (7.4%) at 8pm (185k/0.9%), followed by 24 Hours in A&E with 2.1m (9.9%) at 9pm (354k/2.3%) and Derek with 892k (5.4%) at 10pm (135k/1.4%).
On Channel 5, King's Cross: Inferno on the Tube interested 616k (3.3%) at 8pm. The latest NCIS excited 979k (4.7%) at 9pm (184k/1.2%).
BBC Three's Orphan Black continued with 147k (0.9%) at 10pm.
On ITV2, Fearne and... McBusted entertained 373k (1.9%) at 9pm (149k/1.0%).
