Mila Kunis on Two And a Half Men, The Challenge And More on TV Tonight

MTV, USA, CBS and FOX—all of our favorite networks got something major happening on TV tonight. Here's the lowdown:

Hell's Kitchen. 8pm on Fox. The 16 contestants must make side dishes to go with protein, and the winners take a trip to Laguna Beach to hang out with Lauren Conrad! JK about the Lauren Conrad part though.

OK! Exclusive: Candace Cameron Bure Reveals All About Her Sex Life!

Two and a Half Men. 9pm on CBS. Mila Kunis guest starts with her real-life fiance, playing a girl who Walden thinks might be the one. Art imitating life, guys.

youtube=https://www.youtube.com/watch?v=y6pGS8NT0a8&w=640&h=360

PHOTOS: The Best Celebrity/Athlete Couples

Suits. 9pm on USA. Scottie and Harvey have trouble compromising on the season 3 finale.

OK! News: 5 Things You Didn't Know About Channing Tatum

Under the Gunn. 9pm on Lifetime. Familiar face Heidi Klum and Neil Patrick Harris guest judge the finale, where the designers must show off the collections they put together in just three days.

WATCH: The Million Dollar Listing: NY Guys Discuss The New Season

The Challenge: Free Agents. 10pm on MTV. CT, Johnny Bananas, Aneesa, and some newbies join together in South America for the 25th season of The Challenge. The catch? This season, there are no teams. DUN DUN DUN.

youtube=https://www.youtube.com/watch?v=pDYu-ov8x2k&w=640&h=360

What will you be watching tonight? Tweet us @OKMagazine.