“Dirty Jobs” (9 p.m., Discovery): Mr. “Dirty Jobs” Mike Rowe has really gone

“Dirty Jobs” (9 p.m., Discovery): Mr. “Dirty Jobs” Mike Rowe has really gone and done it this time. For his 150th rigorous chore, he’s helping ranch hands collect precious wool from yaks as a farmer in Kalispell, Mont. Covered in dirt, manure, slobber, spit and wooly fuzz, he also must delicately deal with protective yak mothers in order to weigh their newborns.

“Justin Timberlake: FutureSex/Love
Show” (9 p.m., HBO): One of today’s biggest pop stars takes the stage in the high-energy concert special, “Justin Timberlake: FutureSex/LoveShow.” Recorded at New York’s Madison Square Garden, the program has Timberlake belting out his greatest hits and more.

“The Closer” (9 p.m., TNT): “The Closer” is closing out its highly successful third season with a two-part story that has Brenda, the expert interrogator, actually failing to draw a confession from her prime suspect. On the home front, she makes a shocking discovery about Fritz’s past.