They say if a cat watches TV he is more than likely a little mentally retarded/slow. Cats normal vision is to fast and does not sync up with the TV refresh rate or something like that.
I have had many cats over the years. Most all are outside or at least once they are no longer babies. I have only ever had one cat fixed and shots; he ran away shortly after and became the neighbors cat.
Cats are OK because most of the time they dont leave their poop in YOUR yard and at least make the attempt to cover it, unlike dogs.... but bottom line they are still cats, animals. They come and go. I wont get cats shots or license again.