Limit tournament on TV

I've watched this holdem Limit tournament yesterday and I have to say that at the final table players were calling with the worst hands ever. If one player plays a bad hand and gets lucky on the river that makes him a good player? I know this guys know poker very well but some of the hands they play are really bad. On the other side until the other day I thought bluffing is not possible in Limit Holdem. Well I was wrong. So in my opinion it's not enough to know the game but must have a lot of luck and know your opponents really well.
Anyway, when I'll reach a final table at a live tournament I'll be like 100 years old. Experience won't change much