Re: Improvisational Comedy Clubs?
In Los Angeles the best theatres to catch improvised shows are at the Groundlings and the Upright Citizens Brigade. They are both hard R's (and hilarious) but Groundlings is more "upscale" and accessible to new fans while UCB is more underground/guerilla and appeals to a younger, raunchier crowd. I highly recommend both.
Also the nature of improv is that there will be the occasional dud show so don't give up on the mall-prov yet!