Since this forum is back up again and seems fairly stable, I suppose it's time to post an update on how to use downloaders with iview.
First a legal disclaimer - using downloaders on streaming sites is a legal grey area, so this primer should not be taken as a licence.
However in some jurisdictions it is deemed the equivalent of using a VCR/DVR, so not prosecuted. Also, some businesses have licences which legally allow employees to record or download broadcast media for, ahem, work or research purposes. Hence downloaders themselves are not illegal. End disclaimer.
Apart from some commercial downloaders, today pretty much all downloaders are based on youtube-dl. If you are happy using the command prompt, go to "https://youtube-dl.org/", d/l the version for your os and off you go.
For those who prefer a GUI, see the previous post for a GUI for apple computers. For windows there were several GUIs, but they have now been abandoned and for the most part removed from the web. A series of scripts is still available for SBS from mega.nz, here's a tiny url: "https://tinyurl.com/y8h582e2". The download script works for many streaming sites including iview. You will however need to update youtube-dl. Once you've uncompressed the zip file, go to the created folder and in the sub-folder "bin" run the script "youtube-dl_update" - the copy of youtube-dl packaged with the script is out of date. Whilst these scripts operate in a dos/command shell, you run them from the windows folder, so they are easier to use.
Whether you use native youtube-dl or a front end, you need one additional item and that's the url of the video itself (not the url of the iview webpage describing the show, the two are different). Go to the iview website, then to the page of the show you would like and click on the "share" button and then "copy link". Paste this in when prompted with the frontend or use it as the command line argument with youtube-dl, then sit back and wait. Downloaded files will need to be renamed since they will not include the name of the show, just the series & episode numbers.
The above means of getting a url will work for series, but does not work for one-off programs. There is a workaround, but it is a bit more complicated. Go to the iview web page for the show, right click on the screenshot and select "save image as" and you'll get something like "ZW1435A001S00_598aa96ecff76_1280.jpg" in the "save as" popup. The part before the "_" is the program id code. Paste this into: "<iview web page url>/series/0/video/<id code>". The "web page url" here is the url for the iview page describing the show (not the video link url). Use notepad to assemble the video link and copy & paste that into the frontend or youtube-dl, as above. You should get something like: "https://iview.abc.net.au/show/royal-edinburgh-military-tattoo-2017/series/0/video/ZW1435A001S00".