This is what I sent to the Executive Producer of the show:
On January 12 you told me the show would re-air on February 5 and, in fact, it was widely scheduled to re-air on that date, but it didn't. I must tell you that there was great disappointment among our members and our considerable fan-base that, once more, Finding Amelia did not air on the advertised date. Instead, the network chose to air a yawner about the Kennedy security detail. Whoever schedules these shows did it to us back in December and they did it again on Saturday. Discovery tells us when the show will air, we tell our public, they call their friends, everybody gets pumped, and then Discovery changes the date without telling us. Everyone is disappointed and those who helped spread the word are embarrassed. This creates the impression that Discovery is capricious and disrespectful of its viewers.
I don't hold you responsible for what the scheduling people do, but I hope you'll let them know that this sort of thing has consequences.