Tune into a pre-taped TV celebration on PBS, with a lineup that includes Sara Bareilles, Gladys Knight, the National Symphony Orchestra, and bands from various branches of the military. Actors Joe Mantegna and Gary Sinise will host; other speakers include Colin Powell, Steve Buscemi, and Joe Morton. The ceremony will honor nurses who served in the Vietnam War, and mark the 70th anniversary of the Korean War and 20th anniversary of 9/11. Rising country star Mickey Guyton will sing the National Anthem. Watch it on PBS or stream it on the PBS website here.