If your TV has HDMI ARC, then you can connect HDMI cable from HT to TV HDMI ARC port for 5.1 surround sound. You need to change some settings maybe. If this works, you do not need optical cable.
If you want to connect through ARC, you need highspeed HDMI cable.
This type hdmi cable have front and back data transfer. I think hdmi version 1.4 & above. On the cover you can see support for Ethernet etc.
Also you can check your Tv/Hts manual whether it will support 5.1 through ARC. Otherwise optical cable will be fine.
Thanks @Shabeer bro. I saw all specification and features and seak help with our forum. Only doubt for the HDMI out. Now it clear. And the cable which include with the set. And under 20k, it's the best one. So I gone for it. And Tuesday I tell the experience. Bro.
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