The best replacement for vdr is mythtv.

The best alternatives to vdr are rated as following:
★★★★★  mythtv
★★★★  tvheadend
★★★★  veeam
★★★  vdp
★★  vcb
★★  tour velvet
★★  multi compound
★★  ndmc
  s-vdr
  freevo
  new decade
  dual durometer
  vdo

Your alternative for vdr is not listed? Suggest!
Speaking about vdr, one probably shouldn't forget about cccam.

Other search terms related to vdr and their ratings are:
★★★★★ cccam
You have in mind a companion for vdr and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of vdr in all years. Click on graph for more.
vdr
mythtv
tvheadend