What we're watching: ABC premieres its new show Big Day tonight, it's 24 except instead of Jack Bauer saving the United States it's a couple trying to get through a backyard wedding. We'll be watching intently. NBA scoring leader Carmelo Anthony goes to work as the Nuggets take on the Grizzlies on INHD, and of course we've got new episodes of Gilmore Girls, Veronica Mars, Friday Night Lights and more.

Our traditional high-def listings continue below.

Here are some other HDTV programs showing on selected networks today. All times are Eastern and reruns are in italics:

ABC (720p): Big Day (9 p.m.), Help Me Help You (9:30 p.m.), Boston Legal (10 p.m.)

CBS (1080i)
: NCIS (8 p.m.), The Unit (9 p.m.), 3 Lbs (10 p.m.), The Late Show with David Letterman (11:35 p.m.)

NBC (1080i): Friday Night Lights (8 p.m.), Law & Order: CI (9 p.m.), Law & Order: SVU (10 p.m.), The Tonight Show with Jay Leno (11:34 p.m.)

Fox (720p): Standoff (8 p.m.), House (9 p.m.)

CW (1080i): Gilmore Girls (8 p.m.), Veronica Mars (9 p.m.)

MYNTV (1080i): Desire (8 p.m.), Fashion House (9 p.m.)

Discovery-HD (1080i): Dinosaur Planet (7 p.m.), Rides (8 & 11 p.m.), Anatomy of an FA-18 (9 p.m.), Vehicle Design Summit at MIT (10 p.m.)

ESPN-HD (720p): SportsCenter (6 & 11 p.m.), College Basketball: Maryland vs. Illinois (7 p.m.), College Basketball: Indiana vs. Duke (9 p.m.)

ESPN2-HD (720p): College Basketball: Florida State vs. Wisconsin (7:30 p.m.), College Basketball: Miami (FL) vs. Wisconsin (9:30 p.m.)

TNT-HD (1080i): Law & Order (6 p.m.), Without a Trace (7 & 8 p.m.), The Chronicles of Riddick (9 & 11:30 p.m.)

INHD (1080i): London Live (6 & 6:30 p.m.), Fields of Glory (7 p.m.),, Fueled (7:30 p.m.), Timeless (8 p.m.), NBA TV: Grizzlies at Nuggets (8:30 p.m.)

INHD2 (1080i): Caribbean Escapes (7 p.m.), Wine Trails of Italy (7:30 p.m.), Go! Custom Made Choppers (8 p.m.), You Are Here (8:30 p.m.), Wolves (9 p.m.), The Story of Ruth (10 p.m.)

HDNet (1080i): Get Out! (7 p.m.), Nothing But Trailers (7:30 & 10:30 p.m.), Dan Rather Reports (8 & 11 p.m.) HDNet World Report (9 p.m.), Face 2 Face (10 p.m.), Higher Definition (10:30 p.m.)

HDNet Movies (1080i): Passion of Mind (6:15 p.m.), Evelyn (8:05 & 11:45 p.m.), Jane Eyre (9:45 p.m.)

Universal HD (1080i): Medical Investigation (6 p.m.), The Equalizer (7 p.m.), Law & Order: SVU (8 p.m.), Hilton Skating & Gymnastics Spectacular (9 p.m.), Stealing Christmas (11 p.m.)

HBO-HD (1080i): Madagascar (6:30 p.m.), Harry Potter & the Goblet of Fire (8 p.m.), Russell Simmons' Def Comedy Jam (11 p.m.)

Showtime-HD (1080i): Godzilla (6:25 p.m.), Dexter (9 p.m.), Masters of Horror (10 p.m.), White Boyz in the Hood (11 p.m.), Me and You and Everyone We Know (11:30 p.m.)

MAX-HD (1080i): The Avengers (6:30 p.m.), The 40-Year-Old Virgin (8 p.m.), Star Wars Episode III: Revenge of the Sith (10 p.m.)

STZ HD (1080i): Nada.