How do I hook up an old early 80's style Atari with a modern TV?

Question

This is the 2400 model.

I tried. The plug seems to fit but no games. Just a blank blue screen.

Is my only option getting an old TV at flea market?

Answer 1

Did it have the little box on the end of the cord that had two wires coming out of it?  And you had a little switch to move from TV to GAME.   I remember we had a little connector that had two screws on the bottom where the two wires fit, and the top part of the connector was like the end of a cable and would plug into the tv. I have a couple laying around the house in drawers now.  Surely they still sell them in walmart or radio shack or similar place. about an inch and a half long, inch wide, black.