My 5-part lecture series on the Hertz Chumash, the Living Torah, the Adler Machzor, the Birnbaum Siddur, and three iterations of the RCA Siddur is now available on YouTube, courtesy of Torah in Motion.
Click here to watch it: https://www.youtube.com/watch?v=iL6g0lC7vbk&list=PLGQrWlI7O–7UBUXISJJvrbuLaDfyS-A2
Yosef Lindell 