FRONT-LINE RESCUE

Saving Lives At Sea, 8pm, BBC2

IN LIGHT of the recent tragedy with the probable loss of two fishermen in the North Sea this weekend, this programme is even more pertinent. Here we watch as the crew at Tower in central London — the busiest of the RNLI’s 238 stations — keep watch over the Thames and this week, they are called to a man who has fallen into the water.