Last October marked the 20th anniversary of CSI: Crime Scene Investigation, an occasion that CBS apparently didn’t even realize was coming up until somebody at Jerry Bruckheimer’s production company gently reminded the network that it was sitting on a potential revival gold mine. And now, just six months or so too late (apparently there’s been some kind of global pandemic going on), CBS has announced that it’s giving a series order to CSI: Vegas, a follow-up to the original series that will involve old stars William Peterson and Jorja Fox returning to the Las Vegas Police Department’s high-tech crime lab to stop some kind of “existential threat” and “preserve and serve justice in Sin City.”