TITLE: Convergence in total variation
QUESTION [5 upvotes]: There are the very basic convergence types in probability theory: almost sure, in $L^p$-norm, in measure and in distribution. Besides that there is the concept of convergence in total variation norm. It is obvious that convergence in TV norm implies convergence in distribution. But is there anything we can say about relations between convergence in total variation norm and convergence a.s.,in $L^p$ or in measure?- I did not get any direct hints by googling this, so maybe there is nothing to say about.

REPLY [3 votes]: Total variation norm is a norm on measures whereas all the other types of convergence/norms/topologies that you mentioned are on spaces of functions. 
Nonetheless functions can be measures too. If you have a sequence of measures $\mu_n$ and say all of them are absolutely continuous with respect to a third measure $\lambda$, then the measures converge in TV norm iff their radon-nikodym derivadives w.r.t. $\lambda$ converge in $L^1$.