DRM is like a vibe, man - if you have the ability to output a video stream to an arbitrary display device you can always bypass DRM and it's never been illegal[1] to do so (though publishing approaches to defeat it often is).
1. To my knowledge, I am not a lawyer, this is not legal advice.
Gosh, I didn't know the DMCA went that far. I had assumed it was in line with Canada's TPM related laws which do disallow direct circumvention of DRM but do specifically except format shifting if the copy will be used for a legal purpose. I guess be careful and check your local jurisdiction.
1. To my knowledge, I am not a lawyer, this is not legal advice.