Antiques Roadshow travels to the Midwest—and back in time—with amazing appraisals at the appropriately-named pioneer town Bonanzaville. Highlights include a UND Margaret Cable box, an Elsebeth Haugard silversmith archive and a BF Goodrich Tires advertising sign. One is valued at $30,000-$35,000, which is quite a bonanza, indeed!

Find out which one that is tonight at 8pm on WGBH 2.