Terra Nova (8pm, Fox) - The two-hour premiere of the much anticipated adventure drama from Steven Spielberg. Jason O'Mara ("Life on Mars") stars as a Chicago cop from the 22nd century who travels 85 million years into the past to give his family a better shot at survival (the 2149 earth has become almost unlivable due to overpopulation and pollution). Not usually my kind of show, but I found the pilot to be really exciting. Here's my review. I say give it a shot.
Gossip Girl (8pm, CW) - In the Season 5 opener, Serena makes a big mistake at her new job in Hollywood. Later, Chuck and Nate meet up with her in LA, where Nate is captivated by an older woman (Elizabeth Hurley).
Hart of Dixie (9pm, CW) - A new series about a cold New York City doctor (Rachel Bilson) who moves to a small town in Alabama and gets a dose of humility. The pilot was shot in Wilmington, but should you watch? Adrienne says ...
Mike & Molly (9:30pm, CBS) - In the second season premiere, the engagement honeymoon is over when Molly starts wedding planning while Mike just wants to go fishing with the guys.
Weeds (10pm, Showtime) - In tonight's season finale, Silas is out for revenge against his mom, and there's a big showdown between Nancy and her sister.
The Big C (10:30pm, Showtime) - In this season finale, Cathy decides to run a marathon to honor her dearly departed Lee, and what awaits her at the finish line will upend her life.
Also tonight, "2 Broke Girls" (which is kind of funny!) moves into its regular 8:30pm timeslot (CBS), and new episodes of "Playbunny Club" (10pm, NBC) and "Castle" (10pm, ABC).

Paradise Lost: Child Murders at Robin Hood Hills (8pm, HBO) - A re-airing of the 1993 documentary that first drew attention to the trial of the three teenagers convicted in the gruesome murders of three little boys in West Memphis, Arkansas. The convicted men were set free earlier this month. The sequel to this documentary airs tomorrow night.
The Bachelorette (8pm, ABC) - It's finally over. In tonight's season finale, Ashley must choose between J.P. (left) and Ben F., the two remaining contenders. Apparently, Ashley's family really likes one of the guys, and her sister disapproves of the other one. "After the Final Rose" airs at 10.
Warehouse 13 (9pm, Syfy) - Dr. Vanessa Calder (Lindsay Wagner) reunites with Artie for a case that requires some help from Calder's ex-flame; a mystery lands Pete and Myka in bed while Steve is missing. Saul Rubinek and Rene Auberjonois also guest star. The new Syfy drama "Alphas," starring David Strathairn, follows at 10.
A Capital Fourth (8pm, UNC-TV) - Jimmy Smits hosts a celebration and fireworks display in honor of America's 235th birthday. The special features Josh Groban, Steve Martin and the Deep Canyon Rangers, Little Richard, Jordin Sparks, Matthew Morrison, Broadway's Kelli O'Hara, and the National Symphony Orchestra under the direction of conductor Jack Everly. Live from the West Lawn of the U.S. Capital. Repeats at 9:30.
Citizen U.S.A.: A 50 State Road Trip (9pm, HBO) - Filmmaker Alexandra Pelosi's patriotic travelogue crisscrosses the country to attend naturalization ceremonies in all 50 states and listens to recent immigrants from around the world explain their decision to become American citizens. The film was inspired by the naturalization process experienced by Pelosi's Dutch-born husband, Michael Vos, and includes remarks from former Secretaries of State Madeleine Albright and Henry Kissinger, commentator Arianna Huffington, and rock star Gene Simmons.
mends fences with her long-absent father.
After a weekend of DVDs that explored youth, now we deal with some very adult material.
Chuck (8pm, NBC) - Brilliant casting tonight when Team Bartowski battles a sinister scientist played by Robert Englund (aka
The TV Guide Network thinks your life could use a little, uh, enhancement, so they've launched "National Weeds Awareness Week" to address the problems many Americans face in regularly accessing "Weeds." The best part of this news is that the network will celebrate the awareness week with a six-day "Weeds" marathon.
The Event (9pm, NBC) - To stop a biological threat, authorities must break Sophia during interrogations. And Hal Holbrook (right) comes onboard tonight as a villainous businessman with knowledge of classified intelligence who butts heads with the President. You know what's hard? Trying to find a picture of Hal Holbrook looking sinister.
