many christians would disagree with you about drinking alcohol being a sin, tv being the devil, sports being sinful... i'm sure that you know that. my first hand experience with someone of the non-tv-watching church was her telling me that i was sinning as a woman believer by having my hair cut. i love this person but feel very strongly that there is much hypocrisy that comes out of this mindset. please realize that we must all live by the dictates of our own conscience. just because something is wrong for me does not mean that it is wrong for you and vice versa. paul spoke of not offending the weaker believer by not flaunting your own freedom to do certain things in front of them. i do believe, though, that we can speak the truth to each other and help in the "strengthening" process.
what scriptures are you referring to?