Thanks toddbailey, for letting me jump into your thread.
After a day of research on the WWW, I found a number of sites that were able to answer some of my questions from above. Some were from the AVS forum and another was from our very own TV Fool post of a couple of years ago by rabbit73, who is among the salt of the earth.
https://www.avsforum.com/threads/tel...otout.3164823/
https://forum.tvfool.com/showthread.php?t=16440
https://www.avsforum.com/threads/tel...ennas.3165703/
https://www.digitalhome.ca/threads/m...mix-lr.292691/
https://www.avsforum.com/threads/rea...e-mix.3164862/
I also spoke with rep from TelevesUSA today and she was quite helpful in clarifying my issues.
All the best as you resolve your issues too!