Feel free to do with your system whatever you want, but this forum is not the place to propagate Debian stable based solutions. People who are asking at Aptosid have a reason - they want Debian sid, and OT made that already clear. Add that the topic was already answered fully, no need to add a boring squeeze alternative.
I use c't-vdr (based on lenny), too. It works and that's okay for me. Aptosid may be a little bit "dangerous" for such a "mission critical task". Dangerous in case of describe my girlfriend that I (she) missed to record her favourite soap because of some d-u trouble. Never ignore the waf (womens acceptance factor) (:
My next vdr will be like this one based on squezze: http://www.e-tobi.net/blog/category/ct-vdr
. If you use c't VDR I think you can handle german language.