mr. ed... or seabiscuit? the answer when we return. >> so, what stuffed horse fetched $266,000 at auction? it's "a," trigger, who belonged to roy rogers. >> with the help of his new friend and dog trainer tyson kilmer -- and a year and a half of intense training -- sam simon's rescued 140-pound cane corso is under control. so, you've given columbo a stay of execution. >> nobody else has been bitten, so the first part is amazing. secondly, he's a happier soul. >> but, in 2012, sam's diagnosis of stage-four cancer changes everything. after being told he has only months to live, "the simpsons" co-developer launches a campaign to save as many animals as he can before he's gone. he brings tyson along for the ride. >> as his body began to fail him, he would be jumping on a learjet and flying off, so somebody had to watch out for him. >> here was sam simon ready to do all of these things that seem unthinkable. he rescued all of these bears from roadside circuses. he shut down a mink farm. >> so, the money is kind of gone. >> you gave it all to peta. >> no, no, no, no, no, no, no. i put in a trust that will be distributed, in perpetuity, to save the children and peta and other organizations. >> fant