Lena,
I think this hobby is making me tired.
Then take a break from all the worrying. Seriously, don't let this hobby give you a case of audiophilia nervosa.
I wouldn't worry so much about not having some sort of digital video input on the back of your television monitor. Even if over-the-air analog broadcast is
completely replaced by digital broadcast, there'll always be some sort of set-top-box that will convert the zeroes and ones to beautiful component video that can be fed to your Grand Wega. After all, isn't that how you watch digital video sources (DVD, DSS, digital cable, etc) currently?
Best,
Sanjay