TV Guide Quest Tuesday

Road trip regulars Catherine Southon and Phil Serrell travel to Surrey. Catherine finds herself drawn to two jewellery pieces, a hand-turned Czech vase and a metal vase. Phil finds a cold-painted bronze dog, a French planter and a clay rhubarb forcer

Catherine Southon and Phil Serrell embark on the fourth leg of their trip travelling through the Home Counties of Buckinghamshire and Hertfordshire, as they head towards their penultimate auction. Catherine shells out for not one but two vintage chairs, a Murano glass bead necklace, an ebonised elephant head page turner, a police helmet and a cheese mould. Phil splashes serious cash on some Murano of his own, a stylish library chair, horses sculpted in leather, an elegant mirror and a set of antique scales

How volcanos contribute to the production of guacamole and the development of trucks capable of crossing swamps. Plus, the method used to produce the world-famous Fiskars scissors brand

The production of steel cables capable of supporting a 50,000-ton bridge, why modern hunters still use medieval weaponry and the systems involved in determining the correct quantities of clothing sizes to stock