* Smile Pinki (7 pm/ET HBO)
Like Pinki, the little girl of the film's title, you'll be grinning ear-to-ear - and shedding tears of joy - after seeing this 2008 Oscar-winning documentary short. Director Megan Mylan's heartwarming work chronicles efforts in India to encourage parents of children born with cleft lips to take them to a hospital for free corrective surgery. The defect causes public shame and makes speaking difficult, but all of these kids, including 5-year-old Pinki and 11-year-old Ghutaru, are finally ready for their close-ups.
* Law & Order (10 pm/ET NBC)
Murder! Blackmail! Political intrigue! Kinky fetishes caught on tape! Who knew that charity work could be so exciting? Donate some couch time to the venerated drama's 19th-season finale to find out what kind of human insects the detectives and district attorneys find tangled up in the web of a charity executive's murder.
You've got male. An all-male trio advance to tonight's Season 2 finale after the sole lass, Mountaha, was bumped in last week's fired-up challenge. Chiseled Branden, Brit family man Jonathan and Caribbean looker Sandhurst vie for the $100,000 and plum modeling contract, and one will be declared the winner by episode's end. They'll have to compete in two photo shoots and an extended catwalk challenge, but there's a brief respite when they're visited by family members. Photographer and videographer Matthew Rolston is the guest judge.
* Biography (10 pm/ET Biography)
The headliner of a night of rocker bios is this new one on Metallica. The hour follows the highs and lows of the Bay-area band led by Lars Ulrich and James Hetfield. Founded in 1981, the quartet soon became one of the most influential metal bands of the '80s, and their 1986 album, Master of Puppets, was a landmark of the genre. While touring in support of that album, their tour bus crashed in Sweden, and bassist Cliff Burton died as a result of the accident. After the tragedy, the band regrouped and eventually found mainstream fame with their 1991 self-titled release, which featured the classic "Enter Sandman."
* The Cougar (10 pm/ET TV Land)
A few weeks ago Stacey met, with varying degrees of success, some of the Cubs' families, but the challenge for Jimmy and Colt in the first-season finale involves relatives who should be the ultimate arbiters of a suitable suitor: her three children. And while the demanding Stacey has been dashing hopes left and right all season, one of them will be brought to his knees - quite literally - when he drops down and asks her to marry him.