The Great Courses (TGC) has a type of sale going on now that I've never seen from them before.
I'm not familiar with all 700+ courses that TGC offers, of course, but I am familiar with their offerings in a few, select subjects that I have an interest in. It seems that in this sale TGC has highlighted some new courses that they've added to their catalog, and also highlighted a freshened-up roster of experts that they have employed to give the lectures.
There are only 29 courses in this sale, an unusually small number.
I wouldn't characterize the prices in this sale as great, but they are very good. All but the most frugal spenders and most consummate of bargain-hunters among us will be happy.
Link to the sale.