the name is Rav Yosef Savitsky Shlita Rosh HaYeshiva of Yeshiva Torah Vodaath, i’m pretty sure that everyone in the shiur records it because they have to listen to it more then to understand it.
i can give you information on YTV, cuz i’m there, if you have any specific questions. or if the mod can somehow tell me your e’mail address
HIE – check your email