there should be a video preview in video thumbnail
if you hover the mouse over a video the thumbnail should preview a series of short clips summarising the video in less than 10 seconds or so. every good tube site has this.
but also please keep the description that pops up when you hover over the video thumbnail.
We apologize for the inconvenience.
Our team has been informed on your suggestion but at the time being this feature is not available.
However, we will have this in mind.
Thank you for taking the time to write to us.:)