Get iPlayer Automator is now capable of downloading ITV shows. I should give the disclaimer that this feature truly is in BETA. It is in no way perfect and should not be expected to work as reliably as the BBC downloads do.
This feature, as all future channels (more on that later) will be, is only available to those on 64-bit machines. This includes all Intel Macs except for those with Intel Core chips rather than Intel Core 2, Xeon, or Core i3, i5, or i7.
Hope everyone enjoys this feature over the holidays! And keep the bug reports coming!