I had forgotten about Media Center until recently. After reinstalling Win8.1 I reinstalled MC as well. I resurrected my XBOX 360 and now watch my old recordings from 2 and more years ago.
What terrible quality the analog video is. After watching digital TV now for a couple of years, going back to the analog recordings now is a reminder of why MC is doomed.
My digital TV system is via a fiber optic connection to the inside of my home whereupon it is then transferred to the copper home network. Anyways, I have a Media Center software in the TV providers provided boxes, one device records and plays while 2 others play and get content from the recording device.
If I really want to, and I have occasionally, I can plug in a analog recording USB device I have and record any content that is on my new digital system. It is more steps than just having the MC ".wintv" or ".dvrs" already on the hard drive.