What we're watching: We'll be watching Heroes tonight (and DVRing 24). No offense to Jack Bauer but after last week's episode, even attacks on the President seem passé.

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): What About Brian (10 p.m.)

CBS (1080i): How I Met Your Mother (8 p.m.), The Class (8:30 p.m.), Two and a Half Men (9 p.m.), Rules of Engagement (9:30 p.m.), CSI: Miami (10 p.m.), The Late Show with David Letterman (11:35 p.m.)

NBC (1080i): Heroes (9 p.m.), The Black Donnellys (10:03 p.m.), The Tonight Show with Jay Leno (11:34 p.m.)

Fox (720p): Prison Break (8 p.m.), 24 (9 p.m.)

CW (1080i): Everybody Hates Chris (8 p.m.), All of Us (8:30 p.m.), Girlfriends (9 p.m.), The Game (9:30 p.m.)

MYNTV (1080:): Wicked Wicked Games (8 p.m.), Watch Over Me (9 p.m.)

Discovery-HD (1080i): The Blue Realm (7 p.m.), Risk Takers (8 & 11 p.m.), Uncharted Waters: Florida's Aqua Caves (9 p.m.), Operation Sea Dragon (10 p.m.)

TNT-HD (1080i): Charmed (6, 7 & 8 p.m.), Law & Order (9, 10 & 11 p.m.)

ESPN-HD (720p): SportsCenter (6 & 11 p.m.)

ESPN2-HD (720p): N/A

INHD (1080i): London Live (7, 7:30, 10 & 10:30 p.m.), Timeless (8, 8:30, 11 & 11:30 p.m.), Siegfried and Roy: The Magic Box (9 p.m.)

HDNet (1080i): Smallville (8 & 11 p.m.), Star Trek: Enterprise (9 p.m.), Joan of Arcadia (10 p.m.),

HDNet Movies (1080i): Apocalyps Now Redux (8:05 p.m.), Empire of the Sun (11:30 p.m.)

Universal HD (1080i): Equalizer (6 p.m.), Law & Order: SVU (7 p.m.), 2007 Honda Classic (8 p.m.), Ghost Dad (11 p.m.)

HBO-HD (1080i): Rome (9 p.m.), Poseidon (11 p.m.)

Showtime-HD (1080i): Mad Hot Ballroom (7 p.m.), The L Word (9 p.m.), Sleeper Cell (10 & 11 p.m.)

MAX-HD (1080i): The Wash (6:20 p.m.), V for Vendetta (8 p.m.), Jarhead (10 :15 p.m.)

STZ HD (1080i): Ultraviolet (7:30 p.m.), The Shaggy Dog (9 p.m.), Christmas with the Kranks (10:45 p.m.)