Good evening Kukrika and welcome to the Axiom forums. Your post was indeed lengthy so let me try to give just a couple of quick answers:

- no the speakers would in most cases connect to the AV receiver not the bluray player

- Axiom is primarily a speaker manufacturer so while it is fine to ask other more general and on topic questions you may need to wait longer for responses

- before I can answer your question #1, may I please know if your PC has an HDMI out, and what kind of media the movies that you want to play are stored on?