I'll skip all the long answers and write there is no such update. These smart tv browsers and flash are limited and outdated. See if NASA has a Smart TV app for your model.
My fix was to hook up a real PC. Even a PC on a stick.
When I go to the NASA tv web site I get a message that I need to download the flash player and I get a link to Adobe. When I go to Adobe I get a list of unix formats to select. I have no clue what to select. Any body know how to get the flash player into the smart tv?