Catch up TV on Secret Dealers. Watch the latest and all other episodes of Secret Dealers now online, broadcasted on GEM. Catch up on your favorite GEM TV show: Secret Dealers. Replay tv on its best! Two family homes are visited by three antique dealers who are on the look-out for items they can sell. When the families return home they learn the valuations and cash offers that are being made for some of their most prized possessions.