What we're watching: Tonight we'll check out Ice Age: The Meltdown on HBO.

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, finales in bold:

ABC (720p): Fast Cars and Superstars (8 p.m.), George Lopez (8:30 p.m.), According to Jim (9 & 9:30 p.m.), Boston Legal (10 p.m.)

CBS (1080i): NCIS (8 p.m.), The Unit (9 p.m.)

NBC (1080i): Law & Order: SVU (10 p.m.), The Tonight Show with Jay Leno (11:34 p.m.)

Fox (720p): House (9 p.m.)

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

MYNTV (1080i): N/A

Discovery-HD (1080i): Africa's Elephant Kingdom (7 p.m.), Roush Racing: Driver X (8 & 11 p.m.), Rides (9 p.m.), American Chopper (10 p.m.)

ESPN-HD (720p): SportsCenter (6 & 11 p.m.), NFL Live (7:30 p.m.), Baseball Tonight (10 p.m.),

ESPN2-HD (720p): NASCAR Now (6:30 p.m.), College World Series: Arizona State vs. UC Irvine (7 p.m.)

TNT-HD (1080i): Without a Trace (6, 7, 8, 9, 10 & 11 p.m.)

Mojo HD (1080i): London Live (7 & 7:30 p.m.), Wall Street Warriors (8 p.m.), Timeless (8:30 p.m.), The Show (9 p.m.), Three Sheets (9:30 p.m.), The Philadelphia Experiment (10 p.m.)

HDNet (1080i): HDNet World Report (7 & 9 p.m.), Dan Rather Reports (8 & 11 p.m.), InFocus (10 p.m.)

HDNet Movies (1080i): Liberty Stands Still (6:15 p.m.), The Yards (8 & 11:45 p.m.), Owning Mahowny (10 p.m.)

Universal HD (1080i): Northern Exposure (6 p.m.), Law & Order: SVU (7 p.m.), Lorenzo's Oil (8 & 11:30 p.m.), Conviction (10:30 p.m.)

HBO-HD (1080i): Nanny Mcphee (6:15 p.m.), Ice Age: The Meltdown (8 p.m.), Big Love (10 p.m.), Entourage (11 p.m.)

Showtime-HD (1080i): Dreamland (6 p.m.), Yours, Mine & Ours (7:30 p.m.), Meadowlands (9 p.m.), Basic Instinct 2 (10 p.m.)

MAX-HD (1080i): Fantastic Four (6:15 p.m.), House of Wax (8 p.m.), Poseidon (10 p.m.)

STZ HD (1080i): RV (7:15 p.m.), Eight Below (9 p.m.), The Wedding Singer (11:05 p.m.)

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