The TVLine-Up: TV Worth Watching This Friday

On TV this Friday: A Gifted Man wraps its freshman run, the Shark Tank turns into a kissing booth, Grimm gets a visit from Lost‘s Man in Black, Merlin‘s Lancelot returns from the dead and more. Here are eight programs to keep on your radar.

8 pm Shark Tank (ABC) | After fielding a Shark’s “insane” offer on a revolutionary clothing item, an entrepreneur calls Apple co-founder Steve Wozniak for advice; two Utah college students pitch a line of lip balms featuring flavors that mix-and-match — but only when you kiss.

8 pm Undercover Boss (CBS) | The CEO of Popeyes visits her restaurants’ front lines. (See what other companies will be featured during Season 3.)

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9 pm A Gifted Man (CBS) | Season 1 finale: Michael reunites with an old friend who is suffering from a rare illness, then learns that another patient at the clinic has a special connection to Anna. Frances Fisher (Titanic) guest-stars.

9 pm Grimm (NBC) | Nick discovers strange coins with an unsettling effect on whoever possesses them (in this case, Captain Renard and Hank); Lost‘s Titus Welliver (pictured above) plays a mysterious friend of Aunt Marie’s who comes to Nick with information about what led to his parents’ deaths.

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10 pm Blue Bloods (CBS) | When Frank’s high-profile reporter friend (Gossip Girl‘s Margaret Colin) is almost assaulted while investigating a story, Danny and Jackie attempt to track down the would-be attacker (watch a video sneak peek); Jamie’s undercover case comes to a head. The Dukes of Hazzard‘s Tom Wopat also guest-stars.

10 pm Merlin (Syfy) | Sir Lancelot, having sacrificed himself and vanished behind the veil of the netherworld to save Camelot, returns determined not to help Arthur’s realm, but destroy it.

10 pm Spartacus: Vengeance (Starz) | Spartacus urges his restless rebels to train for the defense of their new sanctuary; Lucretia and Ilithyia seek comfort from each other; Glaber’s forces swell.

10 pm Portlandia (IFC) | Fred and Carrie get the Mayor’s blessing to create a grassroots campaign to prevent the Olympics from ever coming to Portland; A pair of bike valets have trouble finding a disgruntled customer’s (The Smiths’ Johnny Marr) bike.

Which of the above is must-see for you? Also, hit Comments to offer your own tune-in suggestions.