Who Do You Think You Are (8pm, NBC) - Actor Blair Underwood traces his lineage in a genealogical journey that includes a DNA test, a trip to Africa, and articles that reveal the hardships and unforeseen triumphs of his ancestors. Meredith College history professor Dr. Dan Fountain (right) was consulted and worked with Underwood for the episode. Read more about Fountain and his experience on the show.
A Gifted Man (9pm, CBS) - Michael's high school girlfriend arrives at Holy Neuro with a grave condition and he has trouble accepting the limits of what he can do to help her.
Great Performances: Memphis (10pm, UNC-TV) - A performance of the Tony Award-winning musical about a white high school dropout in 1950s Tennessee who becomes a disc jockey in order to promote the music of a black singer he has fallen for.
Merlin (10pm, Syfy) - Merlin tries to treat a mysterious illness that's inundated a distant village, but soon suspects something sinister is at play when even his spells are unable to cure the sick.
Blue Bloods (10pm, CBS) - Danny's emotional state causes concern for his wife and kids when he relentlessly searches for a killer who murdered an undercover detective. The case is personal for Danny because the victim was a Reagan family friend.