Xfinity's home security commercials, like all Xfinity commercials are not very good, but their latest are particularly creepy. I assume this repulsive knight in his long-johns and armor is some kind of dig at Knight Security, but my friends tell me Xfinity isn't smart enough for that. I also don't understand why the knight is still around if the homeowners have already switched. But why am I looking for logic from an advertiser that always does weak and brainless commercials?