Feature Request: OTA DVR Extreme Box Idea Suggestion

I currantly use a Tivo unit for my over the air channels and some streaming. But the streaming option is limited. I was just thinking, what if Roku made a box the could tune in OTA channels and had a usb port to add an external hard drive that would then kick on a DVR feature. Of course this unit would also have the best of all the other roku features and plus, multiple types of audio outputs.

[post moved to appropriate board and title changed to denote feature request]