An interesting idea. On stills alone, I'm not sure about the whole concept with the blank square blocks. They're probably more reminiscent of ITV to me - such as Presentation circa a decade ago, or the 70s LWT bumper - but would be good to see an animation to show how this would work on screen.
The only thing that I would say doesn't quite work is the font choice for the numerals... Everything else seems okay. The ECP
design is the best element of this idea so far IMO; looks good.