
Go to the YOUTUBE icon topleft and click, go right to the bottom of page and find "TRY SOMETHING NEW"
This takes you to the TEST TUBE page, click HTML5 Red button /Try It Out, to proceed.
On HTML5 Video Player page you will be shown what browsers are supported, if your current browser is not supported it will advise so and you can download a supported browser from that page if required.
Click on TRIAL BUTTON to enable.
Open X-sim tutorial and click YouTube (Watch on YouTube), click the GEAR icon, bottom right Quality and speed should be offered . Select QUALITY (HD) and SPEED (0.25). If options are not offered the trial has probably not been enabled.
Click FULL SCREEN and PLAY