August in the Empire State - 2006 was released on: USA: 2006
Mega Engineering - 2009 Underground City was released on: USA: 16 February 2010
The Secret Empire - 1979 Prisoner of the Empire 1-2 was released on: USA: 6 March 1979
Extreme Engineering - 2003 Oakland Bay Bridge 2-3 was released on: USA: 2004
Engineering Investigation of 620 Oil Cooler Outlet Design - 1972 was released on: USA: 1972
Engineering an Empire - 2006 The Aztecs 1-3 was released on: USA: 30 October 2006
Engineering an Empire - 2006 Russia 1-6 was released on: USA: 20 November 2006
Engineering an Empire - 2006 Carthage 1-4 was released on: USA: 6 November 2006
The Byzantines were a medieval people, not an ancient one. Byzantine Empire is a term which has been coined by historians to indicate the eastern part of the Roman Empire after the fall of the western part. The eastern part of the Roman Empire continued to exist for nearly 1,000 years after the fall of the western part of the Roman Empire. The people in question did not use this term. They called their empire Roman Empire or Romania (this referred to this empire and not the country which was later called Romania). The conventional dates for the Byzantine Empire are 476 to 1453. Your question is very broad. I guess that the two most important things for the Byzantines were their religion (Orthodox Christianity) and their emperor.
Mega Engineering - 2009 was released on: USA: 8 June 2009
The Island Empire - 1932 was released on: USA: 1932
Engineering Feats in Oregon - 1916 was released on: USA: 7 February 1916
Engineering the Impossible - 2002 TV was released on: USA: 9 June 2002
Engineering Diversity - 2005 was released on: USA: 6 August 2005 (Dallas Video Festival)
Empire - 2009 1-2 was released on: USA: 2009
Empire - 2009 1-3 was released on: USA: 2009
Empire - 2009 1-5 was released on: USA: 2009