Mine have been fine tonight but they were playing up a bit yesterday.
The Time Inc ones someone posted on one of these threads that if you click on the blue privacy settings box at the bottom left of the page and reject all and save and exit it stops the videos. I tried it and it does work. You may have to select see full vendor list to the bottom left after clicking on the blue privacy button to get it to show the reject all button as it looks as though they have altered it a bit when i checked it just now.
I use this mobile user agent it has worked well for me except for the odd day every now and then. If the videos appear i just click on the mobile user agent again.
https://chrome.google.com/webstore/detail/mobile-user-agent/lmpnjgaclbllogbofbompgpegbbekbcc
I also used the Tab resize split screen layouts button yesterday and split my tabs as i was going through them which fetched them up in separate pages so they carried on running as i went through them i then just shut each one down when they had finished. This is the resize extension i use which is perfect for the magazine comps when having to fill a few answers in.
https://chrome.google.com/webstore/detail/mobile-user-agent/lmpnjgaclbllogbofbompgpegbbekbcc