I have in ceiling speakers powered by a sonos amp. I currently have them connected to my TV and sound coming from the ceiling. 

I am not a fan of the location the sound is coming from, and while I'd like to eventually get an Arc or Beam, I'm not quite ready for the splurge.

I am wondering if there's an interim solution where the sound can come from the TV and the ceiling speakers can be used as surrounds.

Is this possible?