I have a new ONKYO TX-NR686 Atmos receiver with ATMOS speakers. Currently with ROKU i only receive 5.1DD+. I have a 1080P projector so 4k is not a possible. I do have a 4k UHD netflix and VUDU account (for other TVs) however with the projector being 1080p i will not be able to use 4k.

Is Vudu offering Dolby ATMOS in non 4k content?