As an avid watcher of American Pickers and Pawn Stars too, I can probably count on one hand the number of times anyone of color has been on selling something. Unfortunately, they're all on Hardcore Pawn trying to pawn their TV's for $20
If colored includes Asians then indeed there are amazing things to be found in South and SE Asia. Thing about Asian FOBs (and probably all FOBs) is they often don't emigrate w/ their household goods, thus few items to interest antiques roadshow producers and viewers in the States or UK. Asians also tend to favor new things.