Hmm I actually think I can add in the autoplay feature if someone wanted it and the only problem with adding the dates based from you tube is that when you add them to wordpress they won't align correctly.
An example would be you made a post today with todays date then you pulled 5 videos from you tube from dates before today when viewing your blog the new posts won't be the new post it will be the post you made today and the other posts will be backdated appearing off the main page depending on how many posts your making so you could be making 10 posts a day but in reality your visitors won't see a change on the main site.
But I am looking into swapping up the dates to keep things more random and natural.
I'm not really concerned about the autoplay... just for the link above I'm sure some people could use it!
I thought the timestamp of the video was based on youtube or something as it doesn't seem to be when the script is run.... I pulled some videos on the test site and they didn't appear top (or even on the front page).. didn't look that closely though. Does it just go on the date not the time?
I was actually referring to the timestamp for the comments - having loads at the same time doesn't look natural.