interesting. When it started I was wondering how much more could be said about the topic of shaving.. looks like there is a lot.

R' Lichtenstein always begins with a dvar torah before heading into the topic of discussion. The dvar torah in this episode is really nice.

About the discussion itself: The guest seems like an expert on the topic, but  have two comments:
1. as a side point, he starts off the discussion saying he wrote to the gedolei eretz yisrael. Being that he lives in the USA and deals with a community in the USA as his followers, why is he looking for psak in Eretz Yisrael rather than from gedolim in the USA that know the style and type of person he is dealing with?
2. the entire argument they have seems very strange to me. They are arguing about the Chazon Ish and the Chafetz Chaim and Chasam Sofer and Rabbi Akiva Eiger and other gedolim who wrote on the topic 100 years ago, 70 years ago, 150 years ago, etc.. I am sure shavers have changed enough since then that whatever they said about any specific type of shaver is mostly not relevant.