Mardi Gras on Main Street It's Fat Tuesday, so expect to hear cries of Laissez les bon temps roulez! (Let the good times roll!) tonight at the annual celebration in Dunedin with music by Gris Gris and the Bird Street Players in Pioneer Park. There also will be craft vendors and food from area restaurants from 5 to 11 p.m. The parade begins at 7:30 p.m. and moves along Douglas Avenue, from Beltrees to Monroe. Free.
Robert Bazell NBC's chief science correspondent give a free lecture at 7 tonight at St. Petersburg's Mahaffey Theater. He will talk about science reporting and the public's understanding of science at the theater, 400 First St. S in St. Petersburg.
Lynda Carter Who knew Wonder Woman had super strength, a magic lasso and good vocal chords? Lynda Carter, that's who. With John Byner at 1 p.m. at Ruth Eckerd Hall, Clearwater. $16-$20. (727) 791-7400.
Tea in the Garden For a pleasant afternoon break, have some finger food and tea from 3 to 4 p.m. in the garden of the Museum of Fine Arts, 255 Beach Drive, St. Petersburg. Reservations are encouraged at (727) 896-2667, Ext. 210.
Fair tickets You know you are counting the days until you can get a deep-fried Twinkie at the Florida State Fair. Save yourself some money and get your tickets this week at Sweetbay supermarkets. If purchased by Wednesday (the fair opens the next day), adults can save $4 each on admission. You can also get discounts on ride coupons in advance on the fair's Web site, www.floridastatefair.net, as well the Family Fun Pack, a $44 package for four people with 30-ride ticket that is available only by buying in advance.
The Go-Go's Sure they're more cougar than kitten these days, but the '80s girl group can still get a crowd on its feet. They play Thursday at 8 p.m. at Jannus Landing, 16 Second St. N, St. Petersburg. $26.50. (727) 895-3045.
It's junk food galore with the Snack Pack, who eat things you shouldn't so you can decide what calories are worth wasting. Check 'em out at blogs.tampabay.com/snacks.
On TV tonight
The Biggest Loser: Couples, 8 p.m., NBC Rocco DiSpirito judges a cook-off and makes a meal for the winners. How are these people supposed to lose weight this way?
One Tree Hill, 9 p.m., CW We would tell you what this is about, but we just realized the woman who plays Victoria (Daphne Zuniga) is the same one who was in Spaceballs and The Fly II. Whoa.
House, 9 p.m., Fox This is it, House fans - the last new episode until Hollywood comes to its senses. You'll have to settle for finding gruff, misunderstood miracle workers at your own office, because there are obviously no real doctors like this.