Hi to All,
@Electronic M : Please have a look at the HD Fury product line :
https://www.hdfury.com/
Years ago (circa 2012), they manufactured a converter (HDMI/in ---> RCA + DVI out) capable of converting 1080i/p/ to analogue RGB/YUV-/Y/cR/cB with full definition. The HDCP "protection" to output SD-only resolution was ignored*.
*i wanted to use a BluRay Y channel in full HD to source a high-def signal to 819 lines to approximate our old French 819 line wideband video signal which is +/- 737 active video lines of resolution (8.75 MHz).
They were menaced of a lawsuit by the MPAA police to get a HDCP licence or die, so they complied.
The company is still in business today, so have a look at their products, read the Tech fine print & decide for yourself.
Best Regards
jhalphen
Paris/France