So I ditched the Zero 2W as it was just too painfully slow to update and swapped in a working Pi4.
Initially it worked great - sound and video; except the video was a bit wonky.
So I tried adding the disable_overscan=1 and framebuffer_width=1920
framebuffer_height=1080 opttions/
Fixed the video but broke the sound. So I backed those out and video still looks good but no sound.
Is there a foundation step when connecting to a TV via HDMI for video and sound I missed?