I was exposed to an ad today that I'm assuming is new as I have never seen it before. It appears (so far) only when I'm on the mobile version of the sight and reading an article. As I'm scrolling down to read more articles on the mobile front page, a Best Buy ad in between articles will reveal itself, and slowly reveal more of itself as I scroll down. Eventually, it covers 100% of the screen and I need to keep scrolling to get it to start "disappearing". This is incredibly annoying and definitely the most intrusive mobile ad I've come across. I'd really like to see this removed quickly. Attached a screenshot. Thanks!