Received email with following:

We’re getting ready to roll out some major improvements. This means we anticipate being offline overnight from 12.30am till 10.30am tomorrow (Thursday, 17th May).

Once we’re finished, you’ll need to update your Lightbox app and log in again. And to keep watching Lightbox on your mobile or tablet, you’ll need iOS 9.3 or Android 4.4 (or above), as your operating system. Sadly, 2012 Samsung Smart TVs will no longer be compatible with the updated Lightbox app, but you can still get Lightbox shows onto your big screen with a Chromecast. Please get in touch to find out more - we'd love to help you keep watching!

Guessing my 2013 LG TV won’t work either. Though I have Apple TV I watch through on that one.

Wonder if changes will be noticeable.