Sambucol Â® can be used daily to maintain good health, especially during winter. Its flavonoid-rich formula concentrates the natural antioxidants found in black elderberry, which are thought to help stimulate the immune system â your bodyâs first defense against disease.ambucol Â® can be used daily to maintain good health, especially during winter. Its flavonoid-rich formula concentrates the natural antioxidants found in black elderberry, which are thought to help stimulate the immune system â your bodyâs first defense against disease.
From Wikipedia, the free encyclopedia. In the United States and Canada, a regional sports network (RSN) is a cable television channel (many of which are also distributed on direct broadcast satellite services) that presents sports programming to a local market or geographical region.
Digital television simply refers to the format television programming is broadcast in. Since television's inception, analog television has been the standard means of broadcast. Digital is a more efficient means of broadcasting and can provide better quality picture and sound. In order to process a digital signal, a digital tuner is needed. Significance. Congress has passed a law mandating all full power television stations broadcast via digital signals as of February 17, 2009.