“Two and a Half Men” (9 p.m., CBS): After 12 seasons of below-the-belt hilarity,

“Two and a Half Men” (9 p.m., CBS): After 12 seasons of below-the-belt hilarity, headline- making turmoil and a few cast changes, “Two and a Half Men” wraps things up with an hourlong finale that recalls the life — and presumed death — of Charlie Harper.

“Vikings” (10 p.m., History): Season 3 premieres.

“The Odd Couple” (8:30 P.M., CBS): Remake “The Odd Couple”? Why not. Matthew Perry and Thomas Lennon star as Oscar Madison and Felix Unger in an update of the 1970s sitcom about two divorced men who become roommates, despite being polar opposites.

“The Big Bang Theory” (8 p.m., CBS): “Firefly’s” Nathan Fillion guest stars.

TV listings, B6