The Iowa caucuses tonight brought back memories of when I was a small-town reporter covering presidential politics in the '70s. 

Celebration of Gospel (8pm, BET) - A repeat of last week's blockbuster gospel music special hosted by Steve Harvey and featuring a duet between Kim Burrell and Whitney Houston.

Modern Family (9pm, ABC) - Phil and Claire once again assume their alter egos (Clive and Juliana) for their annual Valentine's Day rendezvous. Also, Jay encounters obstacles trying to surprise Gloria, and Cameron and Mitchell dispute an admirer's intentions. "The Middle" (8pm) and "Better With You" (8:30pm) also have Valentine's themed episodes tonight.

Human Target (9pm, Fox) - In the second season finale, Chance digs into the past of Ilsa's deceased husband, but the unsavory details of lies and deceit he discovers may cause irreparable damage to the team.

Reagan (9pm, History) - Another documentary about former President Ronald Reagan, this one focusing on pivotal periods in his life, including his presidency, his role as governor of California, and his acting career. Interviews with Sam Donaldson, David Gergen, and George Shultz.

Mr. Sunshine (9:30pm, ABC) - A new sitcom starring Matthew Perry as the manager of a San Diego sports arena. Also stars Andrea Anders ("Better Off Ted") as a coworker and Allison Janney as his wacky boss.

Top Chef All-Stars (10pm, Bravo) - The chefs cater Jimmy Fallon's birthday party and Fallon serves as the guest judge.

Justified (10pm, FX) - Season 2 has Raylan tracking down a sex offender and renewing acquaintances with the matriarch of a powerful Rabbit Holler pot farming family. Also, Boyd is once again on the loose. Our preview of the new season.

President Ronald Reagan has been feted all weekend, with celebrations and analysis marking the 100th anniversary of his birth.

Even if you've watched some of those, and especially if you haven't, you should take a look at "Reagan" (HBO, 9 tonight), a two-hour balanced, sometimes surprising look at the man and the myth-making surrounding him.

Director Eugene Jarecki uses Reagan associates, like James Baker, Pat Buchanan, and Arthur Laffer (the author of trickle-down economics); Reagan's family, sons Ron and Michael; and biographers, including official biographer Edmund Morris to tell the president's story from beginning to end.