I have owned a Vac Sigma 160i integrated for 4 years. The tubes have not needed replacement during that time, and biasing the tubes needs to be done rarely, and literally takes a minute or two. It is a very simple procedure. Don't be concerned about the Sigma being "high mantenance". That has not been my experience.
Regarding running the tv through it, that would add a lot of hours to the tube usage. I would suggest another solution for the tv, I bought a B&W Panorama soundbar for mine.
Regarding running the tv through it, that would add a lot of hours to the tube usage. I would suggest another solution for the tv, I bought a B&W Panorama soundbar for mine.