JSFiddle - React, Tailwind, and code Playground
HTML
<div id="channels_0">
<div id="channels">
<h4 class="date"><span id="date">Sat 22nd Sep</span> @
<span id="time">12:45</span></h4>
<h3 class="teems"><span id="date">Swansea City v Everton </span></h3>
<h4 class="tv"><span id="mychannels"></span>Sky Sports 2/Sky Sports 2 HD</h4>
</div>
</div>
JavaScript
var channels = document.getElementById('channels');
var date = channels.getElementsByClassName("date")[0];
var datePart = date.getElementById("date").innerHTML;
var timePart = date.getElementById("time").innerHTML;
var teems = channels.getElementsByClassName("teems")[0];
var teemsDate = teems.getElementById("date").innerHTML;
var tv = channels.getElementsByClassName("tv")[0];
var tvChannel = tv.innerText;
console.log(datePart);
console.log(timePart);
console.log(teemsDate);
console.log(tvChannel);