MasterChef: All season long, chef Gordon Ramsay has put aside his usual "Hell's Kitchen" drill-sergeant bluster as he has shepherded this group of amateur chefs in their quest to become a culinary master. Tonight we learn who scores the cash prize and publication of a cookbook in the two-hour season finale (8 p.m. Fox).
Pretty Little Liars: Aria (Lucy Hale) has trouble resolving her feelings for Jason (Drew Van Acker) with what Emily and Spencer (Shay Mitchell, Troian Bellisario) have told her about him in this new episode (8 and 10 p.m. ABC Family).
America's Got Talent: Twelve previously eliminated acts get a second chance to compete in this new episode (9 p.m. NBC).
The Nine Lives of Chloe King: Chloe (Skyler Samuels) gets an email from her father, who needs to see her at once, and Alek (Benjamin Stone) overhears Chloe saying she loves Brian (Grey Damon) and decides to leave her alone ... just when she needs him in the season finale (9 p.m. ABC Family).
What Not to Wear: In this new season of the fashion advice series, style-challenged participants are given $5,000 to spend on new clothes. Cheryl Burke and Jenny McCarthy call on Stacy and Clinton to help show their personal assistant that she is worthy of a look that will put her front and center in the season premiere (9 p.m. TLC). The new special "What Not to Wear: Top 10 Most Resistant Makeovers " follows at 10.
Memphis Beat: When a girl from a family that's feuding with another clan is shot, Dwight (Jason Lee) does his best to keep more blood from being shed in the season finale (9 p.m. TNT).
Top Shot: The contestants get to use the AK-47 in this new episode (10 p.m. History).
Little League softball: World Series semifinals (4 p.m. and 6:30 p.m. ESPN2)
Baseball: The Dodgers visit the Milwaukee Brewers (5 p.m. KCAL); the Texas Rangers visit the Angels (7 p.m. FSN)
WNBA basketball: The Atlanta Dream visits the Sparks (7:30 p.m. FS Prime).