Can Tube Amps be Used for Home Theater?

Elizabeth is correct. Although I'm using a large tube amp in my 2 channel rig with HT pass through, I would never leave it on 24/7 for safety reasons. Also electrical costs and pointless tube degradation play a factor. Go SS for this project.

At one point, I was using all ARC tube amps for my home theatre. (I didn't leave them on all the time, of course). The system consisted of a very old Dual 75a that I have owned since the early 70's, a Classic 60 that was relatively new, and a large monoblock that I purpose bought to use as a center channel amp. (the woofers, a pair of velodynes, were self-powered).
The system sounded great with Snell speakers, but it was HOT after a few hours in the viewing room. I have slowly migrated away, first switching to solid state for the rears, then eventually all channels. I now use a large McIntosh multi-channel amp with oodles of power, and, at least for home theatre use, it sounds great. (My music system is not part of this theater system). I still use tubes in the audio system, but that's another story.

Have you priced power tubes lately?

Thanks and I will now skip tubes. I assume a Hybrid Amp would be in the same league. I will stick to SS and let the fun begin.

Actually a hybrid would be much less of a problem for continuous operation . Usually the hybrid is only one 9 pin dual triode miniature tube. I think that they rarely do much in terms of delivering the tube magic but others disagree. These small tubes run at much lower voltages use little energy and last a long while (10,000 hrs some claim). Still all SS maybe your best bet in terms of sound quality which is obviously your goal .