Some ways to connect...

Option 1
astro/bluray player/PS4/HyppTv/android box/AppleTV (hdmi out) > tv (hdmi in)...tv (spdif out) > soundbar (spdif in)

Option 2
astro/bluray player/PS4/HyppTv/android box/AppleTV (hdmi out) > tv (hdmi in)... tv (hdmi out) > soundbar (hdmi in)

Option 3 (may not work)
astro/bluray player/PS4/HyppTv/android box/AppleTV (hdmi out) > tv (hdmi in)... tv (hdmi in ARC) > soundbar (hdmi in)

Option 4 (may not work)
astro/bluray player/PS4/HyppTv/android box/AppleTV (hdmi out) > tv (hdmi in)... tv (hdmi in ARC) > soundbar (hdmi out ARC)

Option 5 (tv cannot play to soundbar)
astro/bluray player/PS4/HyppTv/android box/AppleTV (hdmi out) > soundbar (hdmi in)... soundbar (hdmi out) > tv (hdmi in)

Option 5a
astro/bluray player/PS4/HyppTv/android box/AppleTV (hdmi out) > soundbar (hdmi in)... soundbar (hdmi out) > tv (hdmi in). Tv (spdif out) > soundbar (spdif in)

Option 5b
astro/bluray player/PS4/HyppTv/android box/AppleTV (hdmi out) > soundbar (hdmi in)... soundbar (hdmi out) > tv (hdmi in). Tv (hdmi out) > soundbar (hdmi in)

Option 6
astro/bluray player/PS4/HyppTv/android box/AppleTV (hdmi out) > soundbar (hdmi in)... soundbar (hdmi out ARC) > tv (hdmi in ARC)

...then there's mix of source hdmi connections to both tv & soundbar...