Last night's episode of GA had a preview of one of next week's stories: about a fellow who has, apparently, a collection of ten thousand cacti and succulents, if I heard correctly.
The program is on at 6.30pm on Saturday, and is repeated at 1.00pm Sunday. For the international folk who might be curious, never fear - our trusty public broadcaster, the ABC, will have the entire episode on the web to download a day or so later.