While it sounds obscure, those who have been using their Macs to archive and transcode HD content from a Motorola DCT-6xxx DVR should happily note that Apple has updated the FireWire SDK. The SDK (short for software development kit) contains software that allows Macs running OS X to record content stored on the increasingly common Motorola-brand high-def set top box.
The SDK contains a program called VirtualDVHS, an uncreatively-named virtual DVHS deck. Connect your mac's FireWire port to one of the two on the back of the DCT and fire up VDVHS and you can record whatever show is playing, whether it is live TV or DVR content. This recording is digital, in high definition and beautiful.
And, thanks to the DC Circuit, sans Broadcast Flag!