Video of Pence's Overturned Double with Scott Franzke and Larry Anderson on the Call
Larry Anderson was actually reserved, mostly because he didn't know the rule.
There are two ways to look at this: 1) You can only review for a home run- meaning that Jack McKeon would have had to ask Joe West to review Pence's double to see if it was a home run. From there, West could, according to a former umpire, make any call while in the process of reviewing. A ballsy, perhaps genius request by McKeon. Or, West reviewed on his own, though that didn't appear to be the case. 2) McKeon asked West to review for fan interference on a double- something that is not reviewable. It's hard to know since there's nothing in the rule book. Another Bud Selig boner.