Hope it won't sounds as some kind of advertisement ( XD ), but I tried to gather dramas on historical time line, so if you are interested in particular period it may be helpful :)
http://mydramalist.com/discussions/chinese-drama-m...
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From myself (coz I watched it) I can recommend to you
Hero
Red Cliff & Red Cliff 2
The Sound of Desert
Nirvana in Fire
They are all set more less 2000 - 1600 years ago, don't think so there is anything set is SO distant past like 4k :(
Nevertheless hope you will find something interesting.
PS. I also replied to your other topic in general discussion with more detailed links to other interesting time tables (Japanese, Chinese and Korean)