According to the September 2012 issue of Channel Guide Magazine, here is the list of shows that are cancelled:

Against the Wall
Alcatraz
All-American Muslim
Allen Gregory
Are You There, Chelsea?
Awake
Bent
Best Friends Forever
Blue Mountain State
Bored to Death
Breaking In
Breakout Kings
The Buried Life
Buried Treasure
Camelot
Cash Cab
Charlie’s Angels
CSI: Miami
Dog the Bounty Hunter
Eureka
Extreme Makeover: Home Edition
The Finder
The Firm
Free Agents
GCB
A Gifted Man
H8R
Harry’s Law
HawthoRNe
How to Be a Gentleman
Hung
I Hate My Teenage Daughter
It’s Worth What?
The Killing
Lopez Tonight
Luck
Make It or Break It
Man Up!
Man vs. Wild
The Marriage Ref
Memphis Beat
Minute to Win It
Missing
Napoleon Dynamite
NYC 22
Pan Am
The Playboy Club
Prime Suspect
The Revolution
Ringer
The River
Rob!
Sanctuary
The Secret Circle
The Sing-Off
Terra Nova
Tyler Perry’s Meet the Browns
Who Do You Think You Are?
Who’s Still Standing?
Work It