With the Motorola DVR offered by FiOS, you can also use a PC to record content from local channels via Firewire, as it is played. Instructions for that can be found this thread
. Note this only works for the local (including locals in HD) and public interest channels on FiOS; this does not work for any FiOS cable channels.
The TivoHD (and discontinued TiVo Series3) is the only DVR that lets you actually login to the DVR and download
SD and HD recordings to your computer over your home network.