Nov.20: What's on HDTV today

What we're watching: We're a little behind today, hence the lateness of our daily listings. We're working on a super-secret project for you; just to give you a few keyword hints: WMCE, HDTV, Xbox 360. Ok, 'nuff said there. Before we go back to our little project, we'll make a viewing recommendation or two.

Let's kick back at 7 p.m. with "Sunrise Earth: Wildflower Elk" on Discovery-HD in 1080i. This is from last year, but the programming at Discovery-HD is always worth a second look or a third or a fourth or......). Keeping with an "Earth" theme, drop over to Equator-HD for some world traveling in high-def. "Earth Diaries" airs in 1080i at 9 p.m.

After the jump is our traditional listing of HD programs throughout the night.

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

ABC (720p): Desperate Housewives (9 p.m.), Grey's Anatomy (10 p.m.)

CBS (1080i): Cold Case (8 p.m.), Snow Wonder (9 p.m.)

NBC (1080i): NASCAR Nextel Cup: Final Race for the Chase (4 p.m.)

Fox (720p): War at Home (8:30 p.m.)

UPN (1080i): Veronica Mars (7 p.m.)

WB (1080i): What I Like About You (6 p.m.), Twins (6:30 p.m.), Supernatural (9 p.m.)

HBO-HD (1080i): Titanic (4:45 p.m.), Rome (8 and 9 p.m.), Spanglish (11:15 p.m.)