Need some nonstop “BattleBots” “Gold Rush,” “Monster Garage” and “House Hunters”? A whole new streaming service starts today to offer all of those regular cable offerings. But the new Discovery+ also offers some titles not available on the original cable network, including “Judi Dench’s Wild Borneo Adventure,” to name one. Also, there is a new documentary, “JonBenet Ramsey: What Really Happened” (Discovery+, streaming) built around the audio diaries of the 1996 case that were left behind by Det. Lou Smit, who never thought the parents did it. 

Another documentary, “Onision: In Real Life” (Discovery+, streaming) looks at a more recent case, the odious YouTube personality Greg Jackson otherwise known as Onison who is accused of abuse by his former girlfriend, the Canadian pop star Shiloh. Also investigating these accusations, from out of nowhere, appears Chris Hansen, the guy from “To Catch a Predator.” 

Two weeks after the conclusion of “The Bachelorette,” here comes the new season of “The Bachelor” (ABC, 8 p.m.), with 28-year-old real estate broker Matt James, the first African American to ever be in that role, facing 32 prospective brides at a resort in Pennsylvania in sessions filmed in September and wrapping just before Thanksgiving. 

A new Spanish-language horror series “30 Coins” (HBO, 9 p.m.) concerning an exorcist in Spain facing demonic events, begins with a pair of episodes.

Another knock on the NFL comes from the women who have to dance for them, as explained in the documentary “A Woman’s Work: The NFL’s Cheerleader Problem” on “Independent Lens” (PBS, 10 p.m., check local listings).