Admittedly this info may be old news to some of you, but Chris Bentley's superb "Complete Gerry Anderson episode guide" book has been revised and updated. It has been issued as a softcover version. The original book is still available and was published as a hardcover. Oddly the cover does not inform the reader of the difference. It is only on the back that this is mentioned.
The book has been updated with numerous revisions, mostly concerning "New Captain Scarlet", but is decently priced and if you don't have the earlier copy is absolutely worth picking up. Of course, I had to get it when I was over the Fanderson convention, even if just to get Chris to sign it. Chris is, of course the chairman of Fanderson. He certainly knows his stuff.
The book is available in most bookstores, and of course at Amazon UK. Price is £19.99, but at Amazon UK its a little over £13.00.