This Saturday, Will Ferrell will be back at his old SNL stomping grounds, where he’ll host the sketch comedy show for the fifth time since his days as a cast member ended. King Princess will perform as the musical guest. Today, SNL released a promo for the upcoming show, which features Ferrell and Beck Bennett. In it, Bennett happens upon Ferrell at the Studio 8H stage, where Will digs up cash he’d buried years ago in the hopes that its value would spike. A bit like this is a good reminder that sketch comedy is very hit and …