"Do No Harm" (10 p.m., NBC, TV-14) offers a curious blend of medical procedural mixed with a 21st-century update of "Dr. Jekyll and Mr. Hyde."

Handsome and headstrong, neurosurgeon Jason Cole (Steven Pasquale, "Rescue Me") has a devil of a time multitasking. From 8:25 a.m. to 8:25 p.m., he's the darling of patients and quite a few colleagues. But in the dark hours, he turns into Ian Price, a violent sadist.

For years, the good doctor has been keeping Price bottled up with narcotics, essentially putting himself into a 12-hour coma every night. But lately, he's begun to prove resistant to even the strongest doses. Colleagues convince him it would be better to confront the evil Ian and work out his demons. His decision to do just that offers an excuse for future helpings of "Harm."

Don't expect too many -- and not just because it's up against the popular "Elementary" on CBS. Forgetting the fact it's nonsensical, "Harm" just can't find the right tone. Saddled with a preposterous story, "Harm" plays it straight, which makes it silly.

Such over-the-top tales might work on the CW. But grown-up viewers who've seen a half-century of "Nutty Professor" movies will have a problem not giggling. Those Jerry Lewis and Eddie Murphy movies were smart enough to find the farce in that far-fetched fantasy. "Harm" is too earnest to be in on its own joke.

---Tonight brings the hourlong series finale of "30 Rock" (8 p.m., NBC, TV-14).

At its best and most

ridiculous, "30 Rock" was the live-action sitcom's answer to cartoons like "Family Guy" and "The Simpsons," laced with pop culture references. But what those shows did with animated throwaway gags, "30 Rock" accomplished with clever writing and silly situations, as it did last week when references to HBO's "Treme" and the talk show "Maury" were used and repeated to brilliant comic effect.

Most of all, the show will be remembered for allowing Alec Baldwin to run away with Jack

Donaghy. Baldwin took the two-dimensional character of a corporate climber and allowed him to grow before our eyes into a man beset with family baggage, ethnic hang-ups, class resentments and psychosexual neuroses. It was dazzling to behold. Tina Fey's "30 Rock" has long been admired as the smartest sitcom on network TV. And there is nothing smarter than knowing when to call it quits.

---"Death: It's a Living" (9 p.m., CNBC) takes a wide-ranging look at America's $17 billion "death care" industry.

OTHER HIGHLIGHTS

---Auditions continue on "American Idol" (8 p.m., Fox, TV-14).

---Reese is kidnapped on "Person of Interest" (9 p.m., CBS, TV-14).

---On two episodes of "The Office" (NBC): Jim's replacement (9 p.m., TV-PG), vandalism (9:30 p.m., TV-14).

---The gang makes a fundraising calendar on "Glee" (9 p.m., Fox, TV-14).

---Arizona finds a kindred spirit on "Grey's Anatomy" (9 p.m., ABC, TV-14).

---Table tennis inspires the designers on "Project Runway" (9 p.m., Lifetime, TV-PG).

---Charlie's dad needs help on "Anger Manage ment" (9:30 p.m., FX, TV-14).

---A conspiracy theorist dies mysteriously on "Ele- mentary" (10 p.m., CBS, TV-14).

---Olivia comes apart on "Scandal" (10 p.m., ABC, TV-14).

CULT CHOICE

A suicidal toy company CEO (Mel Gibson) takes advice from a hand puppet in the 2011 drama "The Beaver" (9 p.m., TMC Extra), a "What were they thinking?" misfire from director Jodie Foster, who also stars.

SERIES NOTES

---Sheldon shirks on "The Big Bang Theory" (8 p.m., CBS, TV-14).

---A music entrepreneur on "Shark Tank" (8 p.m., ABC, r, TV-PG).

---Rebekah spurns Klaus on "The Vampire Diaries" (8 p.m., CW, TV-14).

---Alan can't share on "Two and a Half Men" (8:30 p.m., CBS, TV-14).

---Vincent's secret isn't safe on "Beauty and the Beast" (9 p.m., CW, TV-PG).

LATE NIGHT

---Jason Bateman is scheduled on "The Daily Show With Jon Stewart" (11 p.m., Comedy Central).

---"Occupy Conan" on "Conan" (11 p.m., TBS).

---Kristen Bell, Brody

Stevens, Loni Love and Matt Braunger are due on "Chel sea Lately" (11 p.m., E!).

---Matthew Guerrieri sits down on "The Colbert Report" (11:30 p.m., Comedy Central).

---Al Pacino, Macklemore and Ryan Lewis on "Late Show With David Letter man" (11:35 p.m., CBS).

---Jay Leno welcomes Piers Morgan, Quvenzhane Wallis, Benh Zeitlin and Lisa Loeb on "The Tonight Show" (11:35 p.m., NBC).

---Jennifer Lawrence, Mindy Kaling and Tegan and Sara on "Jimmy Kimmel Live" (11:35 p.m., ABC).

---Channing Tatum, Al Roker and Tim Ferriss visit "Late Night With Jimmy Fallon" (12:35 a.m., NBC).

---Craig Ferguson hosts Rashida Jones and Julie Gonzalo on "The Late Late Show" (12:35 a.m., CBS).

Kevin McDonough can be reached at kevin.tvguy@g mail.com.