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The Masters
3:30/2:30c CBS
Third-round play begins at Augusta, Ga., and golf fans can finally settle in and enjoy the tournament, rather than sneaking peeks at the scores at work. CBS has three-and-a-half hours of coverage today, with ratings expected to soar with the return of Tiger Woods. The tournament has a purse of $7 million, with $1.35 million and the famed Green Jacket going to the winner tomorrow. — Dave Roeder

Patricia Cornwell's At Risk
9/8c Lifetime
Andie MacDowell stars in the first of two political thrillers, based on novels by crime writer Patricia Cornwell, as manipulative D.A. Monique "Money" Lamont. Bent on becoming governor, Lamont uses her top investigator (Daniel Sunjata) to sway public opinion in her favor by reopening a 20-year-old unsolved murder case. This will prove she's tough on crime for sure! But karma has a way of poking its head into the best-laid plans, and Lamont soon finds herself on the receiving end of her past bad ways. The second of the two 2010 cable films, Patricia Cornwell's The Front, airs on the 17th. — Rhoda Charles

Saturday Night Live
11:29/10:29c NBC
More lampooning laughter kicks off the first of three new shows in April (Ryan Phillippe hosts on April 17; Gabourey Sidibe hosts April 24). Taking the reins tonight, SNL vet and 30 Rock star Tina Fey. It's Fey's way when the comedienne, returning to the show that made her a household name, blasts the tar out of today's splashing headlines, along with the series' usual players. But inquiring minds want to know: Will Fey deliver her riotous impression of ever-rising politico Sarah Palin? As for music, taking the stage is 16-year-old pop wunderkind Justin Bieber. — Dean Maurer

Mega Piranha
9/8c Syfy
The difference between the monster fish that got away when your dad tried to reel it in and the monster fish that regularly turn up on the Syfy channel is that your dad exaggerated a little bit and he probably didn't run into any D-listers at the local pond. Giant mutant piranha ditch their Amazonian staples for humans, and it's up to former pop star Tiffany and Barry "Greg Brady" Williams to save the day. Seriously. — Michael Chant

24/7 Mayweather/Mosley
10/9c HBO
Let's face it, it seems like it's just not a big fight anymore unless there's a 24/7 series leading up to it. This behind-the-scenes, before-the fight series, which starts tonight, features undefeated Floyd Mayweather Jr., and welterweight boxing champ Shane Mosley preparing for their May 1 get-together. Mayweather and Mosley have been two of the sport's biggest names for years, and have been pumping up their fight by showing intense dislike for each other during their just-concluded press tour. — Dave Roeder

Trump's Fabulous World of Golf
9/8c Golf Channel
The Donald takes on another celeb-reality show, but this time the "boardroom" is at the 19th hole as participants face off on Trump's Florida links for charity. The first episode sends record-setting NFL Hall of Famers off the gridiron to clash with nine irons, as former wide-receiver extraordinaire Jerry Rice competes against ex-linebacker Lawrence Taylor. Trump and Blair O'Neal host. — Brendan Curley