Hi @nthorbur
Welcome to the Sonos Community!
Will Sonos Arc plug and play via the TV HDMI ARC connection.
Yes. Ideally, Arc would like an eARC port, but will still work with standard HDMI-ARC. The Arc can play compressed Atmos (Dolby Digital +), Dolby Digital, DTS and PCM over HDMI-ARC (assuming the TV supports them - PCM is supported by all, and Dolby Digital is supported by a large majority of TVs). You will not be able to play uncompressed Atmos (MAT) or Multichannel LPCM, however, as these require eARC.
Atmos playback requires the sound-bar, TV, source device (if present) to support Atmos and the content itself needs to be recorded in that format. Uncompressed Atmos is only available on physical media (like BluRay), so if your main source is Sky Q or streaming, the lack of eARC (and thus uncompressed Atmos) isn’t an issue.
You will need to enable SimpLink in the LG TV’s options.
TV mounted to a Sanus VLT6-B2 tilting bracket. Is the WSSATM1 arc bracket compatible with the VLT6.
On the WSATM1 product page, it mentions ‘universal compatibility with SANUS TV mounts and other TV mount brands, VESA Patterns, and for most TV's 50"- 90"’, which is a Yes.
I am a novice in this field with limited technical knowledge on this subject
All hep appreciated
That is exactly why the community is here, and you are very welcome!
I hope this is all clear - if you have any further queries, please don’t hesitate.