I didn't get a response in the Rebug thread so I'll leave the question here... how can I disable HDCP with Rebug 3.55.2? Is it even possible? The Rebug site lists it as an option but I can't find it.
I also read through the list of option on the rebug site, but it also mentions that although those are options on full-on debug units, some of those may not be available on rebug. That's my best guess at this point.