For any north americans on the forum, there is a new programme on PBS called Shelter Me. From the blurb:
"Shelter Me, hosted by actress Katherine Heigl, is a family-friendly PBS show that celebrates the human-animal bond with positive, uplifting stories about shelter pets and their new homes."
More info and schedules on its website.
There's no word on if it will be shown in the UK. If anyone watches it, I'd be interested to know what it's like.