On The Gadget Show this week: Ortis and Georgie are throwing a house party, showing their guests the latest in DJ and speaker gear before putting three cordless clippers through their paces to find out which is best value for amateur haircuts at home. Jon Bentley puts a premium doorbell up against a budget model at nearly half the price to see which is the best value, and money saving pro Harry Wallop is back with some insider tips on how to save cash on TV subscriptions.