Wednesday, Nov. 16, 2022 at 10 p.m. on KPBS TV + Thursday, Nov. 17 at 8 p.m. and Sunday, Nov. 20 at 10 p.m. on KPBS 2 / On demand now with KPBS Passport! A decade-long archaeological quest reveals that the oldest stones of Stonehenge originally belonged to a much earlier sacred site -- a stone circle built on a rugged, remote hillside in west Wales.