Last Resort, 8pm, Sky1
The US naval thriller reaches its finale, having been cut short early by TV chiefs unimpressed by poor viewing figures in the States. But rather than just sink without a trace, the drama promises to go out with a bang as a violent battle erupts on the submarine, leaving the crew vulnerable to capture
from a third party with ulterior motives. The Undateables (Channel 4, 9pm) Some of the contributors from the first series reveal whether they have found love almost a year later. The programme catches up with amateur radio enthusiast Richard, who has Asperger's syndrome and Shaine, a prolific poet from Bournemouth with a learning disability.