Location: Ottawa (Stittsville), ON, OTA (DB4e & VHF-HI folded dipole, AP-2870 pre-amp in Attic), MythTV HTPC
The issue with most USB tuners is they don't have a hardware MPEG encoder for analog (NTSC). Not having a hardware encoder means a software encoder is required, using up CPU processing power. One that does have a hardware MPEG encoder is the WinTV-HVR-1950, though its digital tuner isn't as good as some.
this is the best deal out there right now
Nero LiquidTV TiVo PC $37.99 Free S&H
The Nero LiquidTV TiVo PC deal is back for early Black Friday.
Prices good through 11/30/2009, also says "While supplies last".
This generated alot of interest last time around at this price.