I just noticed that the Western Digital My DVR Expander drive is now available for only $99! Check it out if you are interested in adding 500 GBs worth of additional recording space to your TiVo HD or Series 3.
Thanks to the readers of this site, I’m lucky enough to actually own an expander drive. Overall the device works really well however, if you don’t want yet another device inside your media closet you might want to purchase an internal drive from either DVRupgrade.com or WeaKnees.com. Both of these companies produce a great product and I would highly recommend either of them.
No matter how you add storage (internal or external), expanding your TiVo’s recording space is a great thing. Thanks to the amount of storage I have inside my TiVos, I hardly ever have to delete a recording in order to make space for another.