How do I connect a smart tv to an amplifier, blu ray and cable box with HDMI and have sound come from the amplifier?

[Oldskiboat]

HDMI Connections between an LG smart tv, Yamaha Amplifier, Sony Blu Ray and Bright house Cisco cable box that will allow the cable signal to play through the amplifier and allow a wireless signal from the tv to also play through the amplifier.

 

[americanaudiophile]

Without model numbers no way to be specific.
In general you connect all your sources to the Yamaha (assuming it is a surround sound receiver and not a basic amp) with HDMI. The HDMI out of the receiver goes to the HDMI ARC input on the TV. Turn on ARC in the TV. Done.
Other options would be to use an audio cable from the TV instead of ARC or use HDMI to connect all your sources to the TV and use the audio out of the TV to get sound to the Yamaha. The first option would be if you don't have ARC, the second if the receiver doesn't have HDMI at all.