I had known about this 3-hour long, two part made-for-tv movie for a long time, but it took me a while to get around to watching it. It is very well done, so that even though the dual plots move slowly and with a lot of detail, it kept my interest throughout. It is hard to believe what John Harrison went through all those years working on his clock to be used by sailors to help them know where they are even on the open sea. If Harrison had worked for decades in the hard sciences during a later era, I dare say he would have received a Nobel prize, for it seemed the monetary prize he was seeking... read the rest.