“NCIS” (8 p.m., CBS): On “NCIS,” the investigation into the death of a

“NCIS” (8 p.m., CBS): On “NCIS,” the investigation into the death of a Marine leads the team into the middle of an inner-city gang war, forcing Gibbs to confront demons from his past.

“T.I.’s Road to Redemption” (9 p.m., MTV): How many shows do you see that are tied to someone about to be incarcerated? Here’s one: “T.I.’s Road to Redemption” follows the famous rapper as he stages interventions with at-risk teens leading up to his sentencing on weapons charges next month.

“Wingman” (9 p.m., Fine Living Network): Fine Living Network has hooked up with standup comedian Michael Somerville for its new dating show “Wingman,” and he handles the title role with lan. He’s exactly the sort of supportive, encouraging, full-of-tips guy you’d like by your side in your pursuit of romance.

On the premiere, Somerville takes lovely but love-starved Kela under his wing.

She meets a few candidates that Somerville recruits. Things don’t go so well.

Then, armed with useful break-the-ice techniques (a flirtatious toss of the head; the right verbal greeting), Kela heads for a bar, where Somerville stays out of sight but in radio contact to monitor Kela’s progress.

By the end of the episode, its mission accomplished for Somerville and his newly hooked-up prot g . Meanwhile, the audience will have fun playing voyeur. And maybe those viewers in need will learn some useful dating tips for themselves.