Pink Tv And Dvd Player New Tv With Surround Sound, Xbox, Dvd Player,video, How To Plug It In???

New tv with surround sound, xbox, dvd player,video, how to plug it in??? - pink tv and dvd player

Please, step by step how to connect everything in touch.
TV, DVD, video, xbox, and eventually surround sound.
We have, but we can not always know the main players to speak, when dvds.We can play background noise to hear.
It is a pink spot on the TV screen we see when the screen is blue video channel.
Can anyone help please?