Well, I posted a bunch of clips from the tube of you last night, but it looks like the mods pulled the post. If you want to go find them yourself, here are the timestamps (if you get a different posting, they'll only be in the approximate place):
Episode 1 (2/3) 7:12, 7:22, (3/3) 3:50, 3:57, 4:24. Ten seconds between the first two usages, 7 seconds between the next two, and again half a minute later.
For the hell of it, I randomly picked episode 9 too. (1/2) 1:05, 4:10, 10:03, 10:15 (2/2) 8:50 Oh yeah, episode 10 at 0:40 (didn't look further).
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And remembering Torogai, episode 5 (low audio) 4:05, 4:45 I only looked at the first part, so there's probably more in that episode, but 40 seconds apart? I think I've made my point.
If it doesn't bother you, that's great. But don't tell me I'm imagining it. 
Madness is not a place one goes, it’s a spider waiting to feel the tremble of the web. -- GuiltyRed
We're all mad here. - The Cheshire Cat