Play 5, Play 3 and TV?

Hi everyone! I’m a little confused whether I can connect my play 5 to my TV. Do I need to buy the connect or any other hardware? If I can connect it, how do I do this? I did a search but did not find anything to make this clear. I also have bought two Play 3’s, can they also be connected somehow where I have the audio from the TV coming from the Play 5 and Play 3’s?

Any help is greatly appreciated.