HDTV Listings for January 23, 2011

What we're watching tonight:

• CBS (1080i) has Jets/Steelers in the AFC Championship at 6:30 p.m. and Hawaii Five-0 at 10 p.m.

• Discovery (1080i) presents Apocalypse How at 8 p.m. and Hogs Gone Wild at 10 p.m.

• Fox (720p) has American Dad at 7:30 p.m., The Simpsons at 8 p.m., Bob's Burgers at 8:30 p.m., Family Guy at 9 p.m. and The Cleveland Show at 9:30 p.m.

• History (720p) has Ax Men at 9 p.m. and the season finale of Top Gear at 10 p.m.

• TLC (1080i) presents My 40 Year Old Child at 9 p.m. and Extreme Births at 10 p.m.

• Showtime (1080i) has Californication at 9 p.m., Episodes at 9:30 p.m. and Shameless at 10 p.m.

• ABC Family (720p) has Mean Girls 2 at 8 p.m.

• ESPN2 (720p) has Australian Open tennis at 7 p.m.