Esata external hard drives

I am buying the brand new Tivo Bolt DVR (an INCREDIBLE new DVR, way better than anything else out there) and want to buy an external hard drive to attach to it using the Bolt’s esata port.  Ideally it would be at least 2-3 TB and not too expensive.  I know there are many USB 3 external drives with large capacities, but unfortunately it needs to be an esata hard drive.

Does WD make such a drive?  Does any other manufacturer?

Thanks,  Ron

WD produces the WD My Book AV DVR Expander with an eSATA port:

However, the specific DVR model in question you have listed in the list of tested DVR’s. It would be best to contact your cable provider for information related to compatibility.