We took a closer look at the small Grass Valley vision mixer, and it's not as small as it seems as it supports 16 inputs by means of a shift button. It fired up quite happily, but sadly without a picture as yet and more diagnostic work is needed. If we can get it working then we're heading for full digital capability, albeit in a small way.
We still need to agree a format that all our clips should match for the server, and we need to understand how to get our material onto the server for the patients.