On TV Tonight, Saturday 9/15/2012: Dog Whisperer, Doctor Who, and more September 15, 2012 On TV Tonight NEW 8 PM – 9 PM Dog Whisperer “Cesar’s Worst Bite” – 8pm Nat Geo Wild Virtual Lies – 8pm Lifetime 9 PM – 10 PM Doctor Who “A Town Called Mercy” – 9pm BBC America Pegasus vs. Chimera – 9pm Syfy (Please note: The image grid at the top is the default Fall 2012 schedule and might not always represent what is currently airing tonight. Please make sure to look at the list below to get the most up to date information.) Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Google+ (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pocket (Opens in new window)