The Definitive Science Fiction Television Encyclopedia (4th Edition)
Taken from the 4th Edition Introduction section. See that sections for details of the new shows included. Email address also included in that section also.
In the 4th Edition we have covered 1,180 television shows, with 794 pictures for those shows. A total of 2,071 book titles are included and 22,376 episodes in either episode title or full episode guide version. The main body of this work is 3,175 pages long and contains 1,968,959 words. If you include all over the index and statistics pages that is over 2 millions words and 3,200 pages.