DVR,TiVo: New TiVo added

We added another TiVo to our household in Oct 2005, so the DVR stable looks like

• Humax DRT800F DVD Recorder with TiVo (refurbished)
  Oct 2005
  
• Comcast Motorola DCT-6412 Dual-Tuner DVR High-Definition Set-Top box
  ??? 2005
  
• TiVo TCD240040 Series 2 40 hour (factory renewed)
  Jun 2004
  
• TiVo TCD140060 Series 2 60 hour (factory renewed)
  Jan 2003 (replaced by TiVo with a TiVo TCD240080 Series 2 80 hour, out of warranty, Feb 2005)