The first episode of a three-part reunion special, Red Dwarf: Back To Earth, pulled in 2.06m (10%) for Dave between 9pm and 9.30pm. A further 341k (1.9%) watched at 10pm on timeshift channel Dave ja vu.
A subsequent screening of a classic episode took 1.01m (5.1%) at 9.30pm.
The success of Red Dwarf helped Dave to a primetime share of 3.2%, making it the most popular multichannel station of the night by a margin of almost one share point.
On ITV1, a two-hour repeat of Martin Clunes's Doc Martin brought in 3.62m (17.6%) between 9pm and 11pm. BBC One's documentary The Real Swiss Family Robinson had 2.74m (12.2%) in the 9pm hour, and on Channel 4, Ramsay's Kitchen Nightmares USA interested 2.52m (11.2%).
Five's NCIS put in 2.01m (9%), while BBC Two's coverage of the second day's play at The Masters was seen by 1.85m (8.5%) between 9pm and 10.15pm.
At 8pm, Gardeners' World took 2.15m (9.3%) for BBC Two and Channel 4's A Place In The Sun: Home Or Away appealed to 1.41m (6.1%). Five had 877k (3.8%) for Police Interceptors: Special Edition.
An Airline repeat picked up 2.8m (12.2%) for ITV1 at 8pm, then at 8.30pm, BBC One's repeat of the Wallace & Gromit Christmas special, A Matter Of Loaf And Death, managed 3.42m (14.5%).
ITV1 led in primetime overall with an average share of 23.6% to BBC One's 17.7%. Channel 4 was third with 7.2% (+1: 1.1%), followed by BBC Two with 7.7% and Five with 4.9%.
Ratings data supplied by Attentional