On my HR24 I just typed in Pawn. Moved to the right and highlighted Pawn Stars and pressed Select. It found 105 entries.
I get the same results if I type in the whole Pawn Stars and choose Show for the search.
I am not connected to the internet with my TVs.
Edit / Add: I have moved to the den and another HR24. I did the search for pawn Stars and it returned 107 entries.
105/107 actually sounds kind of low for Pawn Stars. But I'm still only getting 20 eps / 8 vod and they are all SD eps. Someone on another thread suggested I do the CLEARMYBOX keyword trick, so I did that yesterday. Possible it's not been fully indexed yet. It did fix problems I was having with another show though. However, I'm still not getting any Pawn Star eps past Sunday.