Geordie Shore, a British spinoff of US show Jersey Shore featuring some of the biggest party animals in the North-East, debuted with a solid 320k (1.8%) on MTV in the 10pm hour.
Also launching on Tuesday night was Four Rooms, a factual series in which members of the public attempt to sell rare and unique items to four dealers, with the show averaging a modest 950k (4.1%) for Channel 4 in the 8pm hour and 184k (0.8%) on +1.
In the 9pm hour, Crimewatch tracked down 4.83m (21%) on BBC One, beating Home is Where the Heart Is, which had 1.9m (8.3%) on ITV1 and 103k (0.6%) on +1. The Secret Millionaire enchanted 1.61m (7%) on Channel 4, down 400k week-on-week, and 182k (1%) on timeshift.
Earlier, Military Driving School drove away with 2.2m (10.7%) on ITV1 from 7.30pm. BBC One's Holby City fetched 5.21m (22.8%) in the 8pm hour, beating special documentary Prince Philip At 90's 4.1m (18%) on ITV1 and 375k (1.6%) on +1. Crimewatch Update had 3.45m (21.1%) on BBC One from 10.45pm.
Over at BBC Two, Britain's Next Big Thing registered 1.19m (6%) in the 7pm hour. RHS Chelsea Flower Show mustered 2.64m (11.5%) from 8pm and 172k (0.8%) on BBC HD. The Country House Revealed gathered 1.63m (7.1%) in the 9pm hour and 114k (0.5%) in HD. Later Live with Jools Holland captivated 520k (2.6%) from 10pm.
Jamie's Food Revolution Hits Hollywood appealed to 1.12m (6.3%) on Channel 4 in the 10pm hour and 115k (1.2%) on +1. Misfits had 260k (2.8%) from 11pm.
Channel 5's Zoo Days entertained 389k (1.9%) from 7.30pm, before Supersize Grime disgusted 822k (3.6%). CSI and CSI: Miami brought in 2.3m (10%) and 1.3m (6.8%) respectively from 9pm.
Overall, BBC One owned primetime with 24.8% against ITV1's 14% (+1: 0.8%). BBC Two came in third place with 7.2%, followed by Channel 5's 5.5% and Channel 4's 5.3% (+1: 0.7%).
Elsewhere, the UK television premiere of the fifth season of Primeval was watched by 315k (1.4%) on Watch in the 8pm hour.
BARB ratings data supplied by Attentional