Diy is a common expression in English that means do it yourself. In the UK, diy just relates to doing practical work at home. It's not an episode about how you can teach yourself English.
757. Setting up my new Pod-Room / DIY (Do It Yourself) Vocabulary & Expressions
Describing how I am setting up my new pod-room with a couple of stories and plenty of vocabulary for talking about DIY and doing improvements to your home. Vocabulary list available.