Special Broadcast. One of the great holiday traditions in America, the choirs of Morehouse and Spelman Colleges -- two of the most prestigious historically black institutions in the nation -- got together to present a spine-tingling concert program. This encore presentation featurs the best works of the last several years. It's a joyous celebration of the schools' tradition of singing excellence, with their trademark mixture of spirituals and carols. The complete list of ideastream holiday programming is here.