Sorry I put my question in the answer part seen here. I searched the Pengguin site and found the answer for myself. NO DISCOUNTS. Each lesson is like the numbers in the original Tarbell series not as presented in the hardbound books, so basically it is a chapter at a time. Whether this covers all eight book volumes or is only the smaller non-expanded version is not stated. the course at $1995 a month takes about two years to complete. Each course begins annually and runs with a class group (Cohort).
Here is what the Penguin ad reads:
Enrollment deadline: February 8th at 12pm Eastern.
When you enroll in the Tarbell Class of 2020 by subscribing before February 8th, you'll immediately get the first lesson, then continue getting a new lesson EVERY WEEK (Friday at noon) until you graduate (approximately 2 years). You can cancel anytime without penalty, otherwise you will be billed $19.95 monthly.
I calculated this as $478.80 for the set, which may or may not cover the last books by more recent contributors. It is more than the set of books and much more than one can download the original smaller set. HOWEVER. Dan Harlan and Farquar are excellent magicians. I do not know about Farquar as a teacher, but Harlan has always been superb when it comes to teaching his own creations and since this is intended to be a large part of the modernization of the Tarbel works in this updated course it should be worth it to many to at least start the course to see how it is for you. As it says in the ad, you can stop at any time and still keep the downloads you have paid for to the point you drop out.