Conversation so far:
What did The Three Stooges Collection, Volume One: 1934–1936 consist of?
The two disc set contains shorts from the first three years the Stooges worked at Columbia Pictures.
What were these shorts from The Three Stooges Collection, Volume One: 1934–1936 called?
Was there a Volume 2 of The Three Stooges Collection?
Volume Two: 1937–1939 was released on May 27, 2008.
How many volumes of The Three Stooges Collection were there?
There are eight volumes of The Three Stooges Collection.

Question: What additional bonus material was included?
Self-contained rewrite: What additional bonus material was included on The Three Stooges Collection?