Control Freak...!

[Crossbreed]

Just because I like naming things, I call

• the silver remote, The Silver Surfer;
• the URC-3680, The Maestro &
• the URC-3660, The Maestra.

 

[Crossbreed]

I coined a term for this technology, "photosemy" [<Gr. "light signaling"].

 

[Crossbreed]

My silver universal remote contains the equivalent of the following five remotes active (with the remaining remotes available to be swapped in their place):

My black universal remote contains the equivalent of all the above plus the following six remotes active:

 

[Crossbreed]

For the sake of clarification, there are no "master" remotes for Sony boomboxes nor Roku smart TVs, but UEI universal remotes support both.