Gunsmoke was the longest running tv drama EVER. Theres a reason for that. It is truly one of the greatest shows ever, and without the brutal violence (sure people get shot and fall from bar house balcony's on a regular basis, but the violence always ended up biting the bad guys in the butt in the end.
Of course Gunsmoke wasn't all drama and gunslinging, some of the comedy episodes are classics themselves, of these the Dirty Sally episodes, and the Midget Were-Elephant episode are hilarius.
It really is a show the whole family can watch, and you don't have to worry about the young ones trying to karate kick your coffee sack afterwards.