Seventh HBO Special. He's made a career exposing artifice, excess and pretense. So what's Dennis Miller doing cozying up with a bunch of high rollers and showgirls in Sin City? He's headlining his all-new seventh HBO stand-up special. Live from Caesar's palace, Miller tackles such hot topics as gay marriage, the environment, global warming, Hillary Clinton's presidential changes in 2008, bad comb-overs and more.