TV in the car

Many greetings to everyone. Had asked you for other topics, SL is getting louder and louder. That’s all and I got good tips from you. Now something else, I drive the SL350 year 2004. Car has now 165 Tsd Km down and purrs, as it could not be better. I bought it again at that time, with the Navi and still CD over it etc. I had not ordered TV. Now I would like to watch TV during the ride, but preferably only Fo rmel 1, that’s what it’s about me. What should I do to make it quick and easy? Do I need an extra antenna for it? Looking forward to your answers. Greetings, men