Do you love watching Science and history-related TV shows & programs? Or you want to spark the interest in science and history in your kids. Then we have a solution you are looking for all along in the form of the Smithsonian channel. Its programming focuses on history and science topics surrounding the National Mall in Washington, D.C. To watch the Smithsonian channel all you have to do is follow our guide to activate the Smithsonian Channel on Roku and Xfinity via sc.tv/activate.