Best Bets on TV tonight

“Grey’s Anatomy” (9 p.m., ABC): Mandy Moore guest-stars in the Season 6 finale of “Grey’s Anatomy,” and we’re expecting sex, surgeries, some drama and then even more drama. After all, they do have two hours to fill.

“CSI” (9 p.m., CBS): There’s a cliffhanger in store for “CSI” fans as the crime series concludes its 10th season with our intrepid sleuths putting their lives in danger to nab the elusive serial killer Dr. Jekyll.

TV Listings, B6