On freeview (44) chan 5+1 at 8pm, 55 mins long. Exploring the 4 technological inventions that made building the Panama canal one of mankind’s greatest engineering marvels.
Watching it at the moment, could have been made a good programme if it wasn't stuffed full of channel 5's computer graphics & speeded up photography. I can't stand that, I think they think it's clever, I think it's terrible.