Talking Technology With Trevor Long

Should you buy a second hand TV? And how can you check if someone's ripping you off? Trev calls in and Trev steers him away from his mate's TV. Can you download Free to Air TV shows on the apps? Tom wonders and Trev investigates. Another security camera question, and a possible convert to the world of Robot Vacuums. AND - how to use two numbers on WhatsApp! We have the answer!