The CXn-2 screens are capable in displaying the DTV in a frame within a template. You need to set up the Source frame in a 16:9 manner, so the pixles of the frame have to be 'accurate' or thereabouts.
The clock in websites isn't a problem - I used to use the BBC one from the UK, however, it was too small to use. I only use FLASH clocks now (remember to set them to Flash Repeat to Once).
Bill