What we're watching: No Dancing with the Stars? No problem, with the season finales of Chuck and Heroes tonight on NBC, and a special new episode of The Closer on TNT.

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): Samantha Who? (9 p.m.), Notes from the Underbelly (9:30 p.m.), October Road (10 p.m.)

CBS (1080i): How I Met Your Mother (8 p.m.), The Big Bang Theory (8:30 p.m.), Two and a Half Men (9 p.m.), Rules of Engagement (19:30 p.m .), CSI: Miami (10 p.m.)

NBC (1080i): Chuck (8 p.m.), Heroes (9 p.m.), Journeyman Life (10 p.m.), The Tonight Show with Jay Leno (11:49 p.m.)

Fox (720p): House (8 p.m.), K-Ville (9 p.m.)

CW (1080i): Everybody Hates Chris (8 p.m.), Aliens in America (8:30 p.m.), Girlfriends (9 p.m.), The Game (9:30 p.m .)

MYNTV (1080i) : N/A

Discovery-HD Theater (1080i) : Natural Wonders of the World (7 p.m.), Risk Takers (8 & 11 p.m.), Engineering Supermax Prisons (9 p.m.), Concorde: The Final Flight (10 p.m.)

TNT-HD (1080i): Law & Order (7 p.m.), The Closer (8, 9 & 10 p.m.), Saving Grace (11 p.m.),

ESPN-HD (720p): SportsCenter (6 & 11:30 p.m.), Monday Night Countdown (7 p.m.), NFL: Patriots vs. Ravens (8:30 p.m.)

ESPN2-HD (720p): College Basketball: Maryland vs. Rutgers (7 p.m.), Baseball Tonight (11 p.m.)

Mojo HD (1080i): London Live (7 p.m.), NBA: Mavericks at Bulls (7:30 p.m.), Timeless (11:30 p.m.)

HDNet (1080i) :Torchwood (7 & 10 p.m.), Smallville (8 & 11 p.m .), Star Trek Enterprise (9 p.m.)

HDNet Movies (1080i): Finding Forrester (7:15 & 11:35 p.m.), The Chamber (9:35 p.m.)

Universal HD (1080i): Tales from the Crpyt: Bordello of Blood (8:30 p.m.), Conviction (10 p.m.)

HBO-HD (1080i): Flags of Our Fathers (8 p.m.), There's Something About Mary (10 p.m.)

Showtime-HD (1080i): Tombstone (6:45 p.m.), Brotherhood (9 p.m.), Dexter (10 p.m.), Art School Confidential (11 p.m.)

MAX-HD (1080i): Blue Streak (8:15 p.m.), Epic Movie (10 p.m.)

STZ HD (1080i) : The Shaggy Dog (7:15 p.m.), The Benchwarmers (9 p.m .), The Fugitive (10:30 p.m.)