well, i think i only even saw B&B once, but you have to admit Rex is pretty funny because it's soooo bad.
In the first bit of the show, he'll do something with his owner (I'm not very good with names, but I Have wathed this show heaps and heaps of times) like balance on a wall over a dam, or open a really hard to open door, just when they're playing around. Then, at the chase scene at the end he'll use it again and it will be the thing that catches the bad guy.
Also you really have to consider whether theres something more serious going on between rex and his man. There was even a running across the meadow scene into each others arms in one episode.
it's great comedy and good for my german as well - so lond as we cover up the subtitles with videos. :0)