Hauppage doesn't have a hard drive it acts as a intermediary so your PC can record the footage. You would connect the tivo to the happauge which would be connected to your pc. Put what you want on the tivo and use the hauppage software to record the tivo output.
I used one as a DVR for two nights and as a DVR its not reliable enough. For what you are using it for it would work fine.
I used one as a DVR for two nights and as a DVR its not reliable enough. For what you are using it for it would work fine.