In the first show they had a Fisher 1266 and what looked like a PulseStar II (they had managed to use this without getting a single scratch on the underneath of the coil !).
By the second programme they were tooled up with expensive GPS/lap top and an all terrain vehicle but at the end of the programme the producers thank the various companies for the loan of all the equipment. If your doing this type of hunting you would think you would have already spent some of the hundreds of thousands made on equipment already.
I especially liked it when the English bloke got fed up and just dropped his new Fisher F75 from waist height straight onto the ground !