I hadn't really thought about how they'd be removing the analog tuners, but I guess they will eventually. Lots of ways around it, though. I've got three options that I could use right now...

1. Computer w/ a tuner in it - may introduce too much lag, never tried it.
2. DVR w/ rf input and composite outs
3. HD tuner that can also tune analog

and I've always got the old VCR in the basement I could use in the same way. The thing is, TVs are really quite durable, and old ones will be plentiful and cheap for a very long time. Same is true of VCRs. I'm not too worried.

The best option would just be to get your system modified so it outputs composite or s-vid.