Problem here is that tube preamps which keep the tubes off while watching tv are not very good. Bartlett looked promising, about $9k, but it didn’t seem to be of same level as the arc 6se preamp.
I have since found that replacing tubes of 6se are about $300 (1 to 2 yrs) and exp for electricity is about $60-80 annually assuming a watt level of 130 while on. It is truly a pain that a very sophisticated industry has not done a very good job integrating ht with stereo preamps. McIntosh efforts are very troubling, their system when wired as they want it will cause your avr to turn off so you can’t watch a muted active tv screen like a sporting event or have it displaying stuff during social events.
I want exceptional sound when I listen to stereo, and the hifi industry does not make it easy to get there!! Just horrifying.