insecure24 - Well before I say that your completely overreacting you have to address an issue with yourself first. Have you been hurt in the past due to this type of behavior? and What triggers you to react this way? I would ask myself these questions first before taking it out on your mate. I think this behavior would get really old really fast you cant be so insecure, now if he was watching PORN all night that is one thing but if he is just flipping throught he channels that is another story. One note if you are looking for it then you will find it.
Funny but if I think about lets say a Toyota Camry then everywhere I look I will see one, the same might go for T&A
Keep in mind a relationship is about trust, if you trust him and he hasn't given you any reason not to then ease up and stop going out of your way to stress yourself out.