The TortoiseSVN "Show Log" option filters the revisions by date. It's cumbersome to alter those dates manually. How to view all revisions with minimal hassle?
You must perform this at the root folder of you Repository.
Include merged revisions
show all
button. Doing that will set the date range for you also.
Depending on the size of your repository this may take awhile. But you will get a list of every single revision this way.