A Thief of Time, on PBS
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This aired in 2004. It's the third movie in the series of "American Mystery!"s based on Tony Hillerman's novels, about tribal police Joe Leaphorn and Jim Chee, following Coyote Waits. This one is about the search for a missing anthropologist suspected of stealing ancient artifacts, to sell illegally. The truth, of course, turned out to be more complicated. Wish I could remember it better so I could write a proper review. But it's a good story, and I enjoy the scenery and the leisurely pace. Hopefully I'll watch it again, someday.