HT and 2 channel in same room? 1 or 2 systems?

I have a surround system for movies, and a system for 2-channel audio in same room, posted here on A’gon. Works perfect, and simple to use. Rectangle room and one end is audio and one video. A swivel chair is in optimized position for audio and rotates to video when needed. Plus the couch can be used for sports and movies. I would never use tubes for video. I’m fortunate to have this room. I have a single sub for movies and dual for music. Just my 2 cents. I am sure you will figure it out! Have fun!

more than a few people have suggested this might be way over-thinking and over-complicating this and that I should just listen to music thought my multi-channel setup and forget the 2 separate systems

Or, just listen to TV through your 2-channel audio setup. All it takes is an optical (Toslink) cable from the TV to your preamp or integrated. Better yet would be HDMI ARC, if your HiFi system supports that.  

Mine is in the same room. If you have the proper space and acoustics why not. Ht receivers especially high end receivers have a “pass thru” circuit that allows for isolation of each pre amp and respective amps. I’m my scenario it works out great. 

@Johns21,

In my view,+1 Carlsbad configures it exactly how you may want it. I do it the same. Bypass for the avr, means one volume control for the entire theater system or use a second preamp input and use two volume controllers as sometimes the ratio of fronts to surrounds you will want to vary on the fly.

This is an excellent question and very appropriate for me.  I was very excited this morning to read the responses and potential solutions offered by the Gon’ers as I am currently building and trying to figure out the same issue.  IMO with enough research and asking enough questions to the right people, there is always a solution even if it’s a compromise.  But life is all about compromises that you can be happy with. For the OP, I believe the solution is a preamp with HT bypass and sub pass through and is neutral enough to not color the tube amp.  I would keep the tube with the LaScala’s.  I’ve heard them in a room your size and they are one of the top 5-10 speakers I would choose to try in that room.  For the rest of your system, or systems, of integrating subs across HT and 2 channel, here is what I intend to do.

In a mixed use dedicated room,  14x22 fully sound controlled to the best of my ability, I have prewired for 7.4.4 + 2channel mains and riser platform acting as bass trap/ theater seat riser.  I have acquired almost all of the following gear.  I lack the Pre with HT bypass and the DIY subs.  If I am overlooking something obvious, please let me know why this won’t work or you feel that the compromises seem more than it’s worth.  Also, this is my critical listening room, so the compromises need to be minimal.  
Denon x4200h AVR with Rotel amps driving LCR, SS, RS and Atmos. Sub out to miniDSP for passive DIY subs at side and back of room.  Front wide pre out to 2 channel Preamp with 2.1 HT Bypass to amp driving another set of LR as 2 channel mains and  acting as Front Wides when in HT mode.  LFE from AVR also sent to .1 on Preamp bypass into REL subs in front of room.  REL subs also wired high level from 2 channel amp for 2 channel listening.  Video sources sent to AVR and streamer sent to 2 channel Pre.  Room treatments are next but I obviously need to have the system setup and REW before I start on that.  The one issue I haven’t solved is the fairly large projector screen as a reflector between my mains.  My only option may be to use a curtain to pull over the screen for critical 2 channel listening but one thing at a time.  My room is not huge so compromises of speaker placement is a very big concern of mine, but it is what it is and a viable solution will present itself with enough trial and error and enough equipment in and out.  Hopefully, responses to this will help the OP as well as me.