Looking at the quality of stuff that comes from DVB ( HD ) recorders it does appear to be the best solution atm. The 4:3 SD stuff is not so good though compared to the average HD cap card, but similar SD quality to a non HD card.
As we have to muck around to produce caps/clips after recording anyway then the HD DVB seems good and also frees up your PC while recording TV, to boot
( just check a few forums as some brands write with files that are not PC manipulation compatable )