Top 20 Countdown: Most Shocking - Season 4

NCIS (Naval Criminal Investigative Service) is more than just an action drama. With liberal doses of humor, it's a show that focuses on the sometimes complex and always amusing dynamics of a team forced to work together in high-stress situations. Leroy Jethro Gibbs, a former Marine gunnery sergeant, whose skills as an investigator are unmatched, leads this troupe of colorful personalities. Rounding out the team are Anthony DiNozzo, an ex-homicide detective whose instincts in the field are unparalleled and whose quick wit and humorous take on life make him a team favorite; the youthful and energetic forensic specialist Abby Sciuto, a talented scientist whose sharp mind matches her Goth style and eclectic tastes; Caitlin Todd, an ex-Secret Service Agent; and Timothy McGee, an MIT graduate whose brilliance with computers far overshadows his insecurities in the field; Assisting the team is medical examiner Dr. Donald "Ducky" Mallard, who knows it all because he's seen it all, and he's not afraid to let you know. From murder and espionage to terrorism and stolen submarines, these special agents travel the globe to investigate all crimes with Navy or Marine Corps ties.

Tulsa King follows New York mafia capo Dwight "The General" Manfredi, just after he is released from prison after 25 years and unceremoniously exiled by his boss to set up shop in Tulsa, Oklahoma. Realizing that his mob family may not have his best interests in mind, Dwight slowly builds a "crew" from a group of unlikely characters, to help him establish a new criminal empire in a place that, to him, might as well be another planet. 

Emily Lane is a good-natured Christmas shop owner with a secret past. When local murders begin to pop up in Fletcher's Grove, Emily can't help but to use her unique talents from her past life to help solve murders that affect people in her new life. She crosses paths with Detective Sam Wilner who she starts to make a connection with, until he comes to learn there is more to Emily than meets the eye.

Harry Potter: Wizards of Baking invites fans to mix, whisk and glaze their way to success, with professional pastry chefs competing against each other to create enchanting sweet treats, themed around the Harry Potter stories. Will the bakers be able to channel their inner Mrs Weasley? Or will their attempts be as successful as one of Seamus Finnigan's exploding cauldrons?

The Block is an Australian reality television show. The show sees four couples compete against each other to renovate a home in an apartment block and sell it at auction for the highest price.