Big Bang Theory (8pm, CBS) - Sheldon is excited when he hires Professor Proton (Bob Newhart), the host of his favorite childhood TV program, to appear at his apartment.
Beauty and the Beast (9pm, CW) - Cat invites Gabe to a remembrance event her family holds annually for her mother, and Cat uncovers info that makes her question whether her mom is really dead.
Grey's Anatomy (9pm, ABC) - Bailey refuses to accept help from her colleagues, and Owen worries that Ethan will land in foster care.
Parks and Recreation (9:30pm, NBC) - In the Season 5 finale, Leslie celebrates her first year as a city councilwoman, and Andy calls her alter ego, FBI agent Burt Macklin, out of retirement to help with an investigation. Elsewhere, April receives life-changing news and Tom considers a big business opportunity. This better not be a series finale!
Hannibal (10pm, NBC) - This episode, dubbed the "Silence of the Lambs" episode, centers on Hannibal Lecter's bad deeds and on an imprisoned killer (played by Eddie Izzard) who tries to take credit for them.
Scandal (10pm, ABC) - The mole investigation leads to a surprising finding. Meanwhile, Fitz wants Jake to keep safeguarding Olivia, and Mellie's actions force Cyrus to deal with crisis management.
Undocumented (2am, UNC-TV) - DVR Alert: An Independent Lens film on undocumented immigrants who died while crossing the border between Mexico and Arizona, featuring medical examiners who work to identify their remains and Border Patrol agents who balance law enforcement with saving lives.
Hannibal (10pm, NBC) - At the request of the show's creator, Bryan Fuller, NBC is pulling the fourth episode of "Hannibal" due to the "cultural climate" in the country (Newtown, Boston, etc.). The episode, which will not air in the U.S., was about a woman (played by Molly Shannon) who brainwashed children to kill other children. NBC is releasing a 
There's a lot to like about "Soul Food Junkies" (UNC-TV, 11 p.m. Saturday ), a documentary airing on PBS, but there's one line I love.
It's no secret that that cost is high. Hurt starts his journey after watching his father become obese after a lifetime of eating fried chicken, greens seasoned with pork, sweet potato pie, and all those other delights. His dad eventually dies of pancreatic cancer. Hurt admits he doesn't know that his father's cancer was caused by his diet, but just exploring the foods leads to a journey that changes his family and their diets.
Hatfields & McCoys (9pm, History) - In part one of a three-part mini-series, a McCoy is murdered by a Hatfield and a forbidden love affair begins at the start of the legendary Hatfield-McCoy family feud, which nearly brought the states of Kentucky and West Virginia to a civil war in the 1880s. Stars Kevin Costner (right) and Bill Paxton.
Community 8pm, NBC) - The death of a classmate gives Britta a chance to play counselor to the others by using the psychology lessons she's recently learned, but Jeff appears unaffected by the loss.
Too Cute (9pm, Animal Planet) - A new installment in Animal Planet's "Too Cute" series chronicling the first few months of three litters of puppies. And we can only presume from the title, some ducklings.
An Independent Lens documentary on Civil Rights leader Daisy Bates begins airing on UNC-TV this week.
The Royal Wedding: The Encore and More (8pm, TLC) - If you were trapped in a mine for the past 36 hours, you can watch memorable moments from the wedding of Prince William and Kate Middleton. Includes interviews with guests who attended the wedding.