It is my understanding that, so far, there is 'no' DVI and HDMI input for CRT display... Pls correct me if there is any update.
Definitely, Sony HR, HZ and DA do NOT have any digital signal input.
The advanced feature for this TV is progressive scan and HDTV capability, ie 720p or 1080i, via component video input krub.
If you really want to use digital input, then you should go for fixed pixel display 

 LCD, plasma or DLP...