Matthew Collings hosts the fourth episode of his six-part Channel 4 series on modern art, turning his attention here to minimalism. He walks through the movement's core claim: that stripped-down geometric forms, flat colors, and industrial materials can carry as much meaning as any figurative painting, if not more. Collings talks through the work of artists working in this stark, reductive mode, unpacking why they wanted art to stop referencing anything outside itself and simply exist as an object in a room. His approach stays conversational rather than academic, mixing gallery visits with his own skepticism about whether minimalism's ambitions match its plain appearance. The episode sits within a broader survey Collings built to explain, and sometimes needle, the assumptions behind contemporary art for a general audience rather than a specialist one.