I recently searched for the Emmy award show "Drunk History" as I've never seen it. Using the voice command it reports "nothing found" or some thing like that. It should be more like what Netflix does and say the show is not available On Demand and any status of it's availability. That goes for all TV shows, even long lost shows.
ps I find it amazing that CC only allows you to view this show from their website, which like most media sites (including Xfinity) does not support Linux.