TV is not the watch dog of morality, but it's reflection, so my rant is against the people who take the limelight and lower our standards of decency. TV has the power to do that by the portrayal of character's of high moral tone as ridiculous or stiff-necked, and the use of gangsters as nice guys.
By teaching us to witness scenes of mayhem and destruction as humorous we lose sensitivity to the horror of the story we watch. It's not a big leap for us to justify killing the murderer. I believe in defending yourself, but it is still a drastic thing to kill another person.