tomorrow night, bbc2, 9pm.
http://www.bbc.co.uk/programmes/p019z22g this potentially could be great. ('what happens to your cat when it leaves the cat flap')
there's a follow up on friday at 10 - P.O.V. clips from the cat-cams.
They include the intruder cat, an unneutered tomcat, who comes into the village and seems to have no owner; the hunter, who prefers food that he can catch and kill to anything his owners might buy him; and the deserter cat who has abandoned his home in favour of a new set of owners.