after a recent update to the page, ad blockers won't completely block video ads on the site, between each 'game'/entry. The video itself won't show, but the ad frame stays on the screen for usually between 30 and 45 seconds. In some cases, the site won't even allow you to access certain areas if an ad blocker is detected (apparently there is a script on the site for detecting them, and if the script doesn't run the value is returned as true by default), and redirects back to pch.com main.
More discussion of the issue can be found here: https://adblockplus.org/forum/viewtopic.php?f=10&t=48305
Thanks in advance