[any ANONYMOUS forum user]

A quick n Dirty test looks like that is the case, it is Gzip compressed.

using gzip from GnuWin32 allows decompression back to text.

find the line:
bin\wget %WGET_OPT% -O "cache\index.json" "http://tviview.abc.net.au/iview/api2/?seri.......
chg to bin\wget %WGET_OPT% -O "cache\index.gz" "http://tviview.abc.net.au/iview/api2/?seri
and add the lines:
gzip.exe -d "cache\index.gz"
ren cache\index index.json