HDTV Listings for July 12, 2009

What we're watching tonight:

• NBC (1080i) airs Merlin at 8 p.m.

• CW (1080i) has Valentine at 7 p.m.

• NBC (1080i) presents part 1 of 2 of Meteor at 9 p.m.

• History (720p) has Ice Road Truckers at 9 p.m. and Expedition Africa at 10 p.m.

• USA (1080i) has Law & Order: CI at 8 & 9 p.m. and In Plain Sight at 10 p.m.

• HBO (1080i) lines up True Blood at 9 p.m., Hung at 10 p.m. and the season premiere of Entourage at 10:30 p.m.

• A&E (720p) has Hammertime at 10 & 10:30 p.m.

• Discovery (1080i) presents Wild Pacific at 8, 9 & 10 p.m.

• ESPN (720p) has Cardinals/Cubs baseball at 8 p.m.

• ESPN2 (720p) has NHRA Nationals at 7 p.m.