Friday’s TV highlights

SERIES

Undercover Boss: The CEO of the Oriental Trading Co. of Omaha, Neb., goes undercover at the party supply and novelty seller (8 p.m. CBS).

Who Do You Think You Are? In this new episode, former Pittsburgh Steeler Jerome Bettis looks for the roots of his strength and athleticism in his family tree (8 p.m. NBC).

Ghost Adventures: In the season premiere the team follows the story of the Shanghai Tunnels (9 p.m. Travel).

Fashion Police: Joan Rivers and panelists Kelly Osbourne, Giuliana Rancic and George Kotsiopoulos return with an expanded format and new features in the season premiere (10 p.m. E!).

Portlandia: The quirky series wraps its season (10 p.m. IFC).

Spartacus: Vengeance: Spartacus (Liam McIntyre) and his rebels try a new tactic for adding to their numbers: liberating fighters enslaved in foreign wars and recruiting them to the cause. Lucy Lawless also stars in this new episode (10 p.m. Starz).

Merlin: When Elyan (Adetomiwa Edun) drinks from the well at a shrine to slain Druids, he is possessed by the spirit of a dead boy who bewitches him into trying to kill Arthur (Bradley James) in this new episode (10 p.m. Syfy).

SPORTS

College basketball: Big Ten Tournament: TBA vs. Michigan State (9 a.m. ESPN); TBA vs. Wisconsin (11 a.m. ESPN). ACC Tournament: TBA vs. Virginia (11 a.m. ESPN2); Duke vs. TBA (4 p.m. ESPN2); Florida State vs. TBA (6 p.m. ESPN2); North Carolina vs. TBA (9 a.m. ESPN2). Big 12 Tournament, Semifinals (4 p.m. KDOC; 6:30 p.m. KDOC). Big East Tournament, Semifinals (4 p.m. ESPN; 6 p.m. ESPN). Pac-12 Tournament Semifinals (6 p.m. FSN; 8:30 p.m. FSN).

Women’s basketball: Big 12 Tournament (Noon FS Prime).

Pro hockey: The Kings visit the Detroit Red Wings (4:30 p.m. MyNet).

College hockey: Hockey East Tournament, Quarterfinal: Massachusetts at Boston College Game 1. (4:30 p.m. NBCSP).

Pro basketball: The Lakers visit the Minnesota Timberwolves (5 p.m. KCAL); the Clippers visit the San Antonio Spurs (5:30 p.m. FS Prime).